血清の甲状腺刺激ホルモンに対するホルモン置換療法の影響: 遡及的分析
Pietro Molinaro1, Livia Pellegrini2, Giulia Mariani2
1IVIRMA Global Research Alliance, IVI Roma, Rome, Italy.; University of Valencia, Valencia, Spain.
Reproductive biomedicine online
|August 28, 2025
まとめ
ホルモン補充療法 (HRT) は,IVFの準備中に甲状腺刺激ホルモン (TSH) のレベルを上昇させます. TSHの上昇 (> 2.5 mU/ l) は,妊娠中絶ではなく生育率の低下と関連しており,さらなる研究が必要である.
科学分野:
- 生殖内分泌学
- 甲状腺の生理学
- 試管受精 で
背景:
- ホルモン置換療法 (HRT) は,助産生殖技術における子宮内膜の準備に不可欠です.
- 甲状腺機能,特に血清の甲状腺刺激ホルモン (TSH) は,生殖の結果に役割を果たします.
- 試験管内受精 (IVF) サイクル中のTSHレベルに対するHRTの影響は明確にする必要があります.
研究 の 目的:
- 単一胚移植 (SET) を受けている女性の血清のTSHレベルに対するHRTの影響を調査する.
- HRT中のTSHレベルと妊娠の結果,流産と生児率の関連性を決定する.
主な方法:
- SET を受けた516人の女性 (≤49歳) の遡及的なコホート研究.
- TSHレベルは4つの時間点で測定されました: ベースライン,子宮内膜評価,胚移植,妊娠検査.
- HRTは,経口エストラディオール・ヴァレラートと陰道プロゲステロンを含み,レボチロキシンは,TSH>2.5 mU/ lで投与された.
主要な成果:
- HRTは,基礎値 (T0) と比較して,子宮内膜検査 (T1) と妊娠検査 (T3) で TSH濃度を有意に増加させた.
- 単一分析では,TSHがT3で<2.5mU/ lであった場合,流産率が高く,進行中の妊娠と生児の割合が低いことが示された.
- 多変量分析では,TSH>2.5 mU/ lと流産との間に有意な関連性はないが,生児率との間に有意な否定的な関連性があった (aOR0. 54, p=0. 02).
結論:
- HRTはIVFの準備サイクル中に TSH濃度を著しく上昇させる.
- HRT中のTSHレベル> 2.5 mU/ lは,低出生率と関連していたが,必ずしも流産とは関係なかった.
- HRT と 甲状腺機能 と 生殖 成功 の 関係 を 完全に 解明 する ため に,さらなる 研究 が 必要 です.
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