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多基因风险评分 (PRS) 在预测欧洲血统女性的孕前方面提供了适度的改善. 由于在遗传学研究中代表性不足,它们的实用性在非洲祖先的女性中是有限的,这凸显了公平发展的需要.

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科学领域:

  • 遗传学和基因组学 遗传学和基因组学
  • 孕产妇和胎儿医学 孕产妇和胎儿医学
  • 生殖健康 生殖健康

背景情况:

  • 孕前症对母亲和胎儿的健康构成重大风险.
  • 早期识别高风险怀孕对于实施预防措施至关重要.
  • 孕前多基因风险评分 (PRS) 的预测价值需要进一步调查,特别是在不同的祖先之间.

研究的目的:

  • 评估在第一季度预测模型中预孕前和缩血压PRS的附加预测价值.
  • 将PRS的性能与已建立的临床和高级预测模型进行比较.
  • 评估不同祖先群体的PRS表现.

主要方法:

  • 分析了两个潜在的怀孕队列 (胎儿医学基金会和怀孕结果预测研究).
  • 风险模型包括临床因素,PRS和先进的第一季度标记 (平均动脉压,PAPP-A,子宫动脉脉动指数).
  • 使用接收器操作特征曲线 (AUC) 下的面积来测量差异性性能,并根据祖先进行评估.

主要成果:

  • 孕前 PRS与孕前有独立的关联,对临床模型的预测有轻微的改善 (AUC 0.746与0.750).
  • 当PRS被添加到高级模型中时,没有观察到显著的改善 (AUC0.817与0.818).
  • 系统性血压PRS在欧洲血统的妇女中改善了预测,但在非洲血统的妇女中没有.

结论:

  • 孕前和静脉压的PRS提供了欧洲血统女性临床因素之外的有限的额外预测价值.
  • 在全基因组关联研究中的代表性不足限制了当前PRS在非洲祖先种群中的实用性.
  • 改进的PRS模型和更大的队列可能会在未来提高孕产妇健康的公平风险分层.