维生素D结合蛋白和生殖结果
Iris Tien-Lynn Lee1, Andrew N Hoofnagle2, Richard S Legro3
1Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PennCsylvania.
维生素D结合蛋白 (DBP) Gc1f亚型与接受卵巢刺激的妇女的更高的活产率和更低的早期妊娠损失有关. 这表明DBP是DBP.
科学领域:
- 生殖内分泌学 生殖内分泌学
- 遗传学和基因组学 在
- 内分泌学 在内分泌学.
背景情况:
- 维生素D结合蛋白 (DBP) 在生殖结果中的作用尚不清楚.
- 现有的研究经常假设DBP的作用仅仅是由于维生素D的生物可用性,忽视了其独立的功能.
- 多囊卵巢综合征 (PCOS) 和无法解释的不孕症是女性不孕症的常见原因.
研究的目的:
- 调查DBP度和单元型 (Gc1f,Gc1s,Gc2) 与生殖结果之间的关联.
- 为了评估PCOS患者或接受卵巢刺激的不明原因不孕症患者的这些关联.
- 探索DBP在生殖中的作用的潜在维生素D独立机制.
主要方法:
- 追溯队列研究分析了两项随机对照试验的数据:多囊卵巢综合征II中的怀孕和通过卵巢刺激评估多个子宫内妊娠.
- 包括881名参与者:376人患有PCOS,505人患有无法解释的不孕症.
- 评估了DBP度和DBP Gc1f,Gc1s和Gc2单元类型作为暴露,结果是活产,早期怀孕丧失和产科并发症.
主要成果:
- 在DBP度,Gc1s或Gc2单元型和活产率之间没有发现显著的关联.
- 在对混因素进行调整后,Gc1f单元型显示出与活产几率增加 (aOR,1.49) 和早期妊娠损失几率降低 (aOR,0.46) 的显著关联.
- 没有观察到Gc1f单元型与产科并发症之间的关联.
结论:
- 在接受卵巢刺激的妇女中,DBP Gc1f单独与改善活产率和减少早期妊娠损失有关.
- 这些发现挑战了"自由激素理论",表明DBP在生殖成功中的作用与维生素D无关的机制.
- 需要进一步的研究来阐明特定的非维生素D相关途径,通过这些途径DBP会影响生殖结果.
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