2023 Fiscal Year Final Research Report
An Empirical Study of the Effects of the Frozen Embryo Transfer Method on the Neurobehavioral Development of ART Births
Project/Area Number |
21K10391
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 58020:Hygiene and public health-related: including laboratory approach
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Research Institution | Tohoku University |
Principal Investigator |
miyauchi naoko 東北大学, 医学系研究科, 技術補佐員 (60596162)
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Co-Investigator(Kenkyū-buntansha) |
小林 記緒 東北大学, 医学系研究科, 助教 (10803885)
小林 枝里 東北大学, 医学系研究科, 助教 (70634971)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | 凍結胚移植 / 不妊治療 / 胎盤 / 低分子RNA(miRNA) |
Outline of Final Research Achievements |
Recently, the number of the patients with assisted reproductive technology (ART) has increased in our country. Frozen embryo transfer (FET) has become a main method. It has been pointed out that children born with FET techniques are more likely to develop neurobehavioral developmental disorders such as autism. This study utilized data from a large prospective cohort study to conduct a thorough longitudinal observational study of the birth status and physical and neurobehavioral development of FET-derived offspring in light of their growth. Next, we performed epigenetic analyses using highly purified placental cells from the postnatal placentas of FET offspring to assess their genetic safety supported by scientific evidence and to examine the risk factors.
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Free Research Field |
分子生物学
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Academic Significance and Societal Importance of the Research Achievements |
本研究はエピゲノム解析と疫学調査を組み合わせた独自の発想に基づく研究計画であり、その成果は科学・医学領域のみならず、社会や政策にも影響を及ぼすものとなる。また、GI遺伝子の発現量の変化は、出生児の体格や性差にも影響を及ぼし、その制御機構の破綻は、先天性疾患に限らず、乳幼児の発達、小児期の行動異常にも影響を及ぼすことも知られている。今回の解析では、FET法に対して感受性の高いゲノムインプリンティング(GI)遺伝子領域を明らかにしFET操作と行動異常との関連について科学的な検証を行った。FET法の安全性とリスクを詳細に検証することで、次世代の健康社会をデザインする重要な知見となり得ると期待できる。
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