IVF/ICSIを受ける多胞性卵巣症候群の患者における受精効率の決定因子としてのインスリン抵抗性:遡及的なコホート研究
Ruiteng Zhang1,2, Xuejin Wang1, Meilan Mo1
1Shenzhen Key Laboratory of Reproductive Immunology for Peri-Implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital, Shenzhen, Guangdong, China.
Reproductive biology and endocrinology : RB&E
|September 1, 2025
まとめ
インスリン抵抗性 (IR) は,多胞性卵巣症候群 (PCOS) の女性において,助産生殖技術 (ART) を受けている女性の卵子受精に悪影響を及ぼします. これらの患者の代謝機能障害の治療は,ARTの成功率を改善するために不可欠です.
科学分野:
- 生殖内分泌学
- 不妊 症 研究
- メタボリックシンドローム
背景:
- 多囊性卵巣症候群 (PCOS) は,不妊症に関連した一般的な内分泌障害です.
- インスリン抵抗性 (IR) は,PCOS患者における頻繁な併発症である.
- 助産生殖技術 (ART) は,体外受精 (IVF) と細胞内精子注射 (ICSI) を含め,しばしばPCOS患者の不妊症の治療に使用されます.
研究 の 目的:
- IVF/ ICSIを受けている多胞性卵巣症候群 (PCOS) の患者の臨床結果に対するインスリン抵抗性の影響を調査する.
- ARTを受けているPCOS患者において,IRが受精障害と妊娠の危険因子であるかどうかを判断する.
主な方法:
- IVF/ ICSIを受けた1, 768人のPCOS患者による遡及コホート研究.
- 患者は非IR (HOMA指数<2. 69) とIR (HOMA指数≥2. 69) に分かれました.
- 線形ロジスティック回帰と多変量ロジスティック回帰を含む統計的分析を用いて結果を評価した.
主要な成果:
- IR患者と比較して,PCOS患者ではBMIが高く,不妊期間が長く,アントラル毛穴数が増加しました.
- IR群では受精率と2核前受精率 (2PN) が著しく低かった.
- IRは,正常体重のPCOS患者における卵子受精障害の独立した危険因子として特定されました.
結論:
- インスリン抵抗性 (IR) は,正常体重のPCOS患者でARTを受ける卵子細胞の受精能力と初期胚の発達に悪影響を及ぼします.
- IRによって引き起こされる代謝失調は,毛細血管と細胞の成熟プロセスを損なう可能性があります.
- IRの影響を受けたPCOSの集団における代謝機能障害の対処は,ARTの結果を最適化するために重要です.
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