已知的致病基因变体和新候选者在使用全基因组测序检测的突然意外婴儿死亡中被检测出来
Angela M Bard1, Lindsay V Clark2, Erdal Cosgun2,3,4
1Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, Washington, USA.
American journal of medical genetics. Part A
|June 19, 2024
概括
遗传因素有助于突发意外婴儿死亡 (SUID). 全基因组测序确定了88个基因的变异,包括心脏和神经基因,为SUID的原因提供了新的见解.
科学领域:
- 遗传学 遗传学 是一个
- 儿科 儿科 儿科
- 分子生物学分子生物学
背景情况:
- 婴儿突然意外死亡 (SUID) 仍然是一个严重的问题,其原因在很大程度上是未知的.
- 人们怀疑有遗传倾向,但尚未完全阐明.
- 三重风险假设表明,在SUID病例中,因素的结合.
研究的目的:
- 使用全基因组测序 (WGS) 识别与突然意外婴儿死亡 (SUID) 相关的遗传变异.
- 扩大对婴儿死亡率的遗传贡献的理解.
- 探索遗传因素与已知的SUID风险模型之间的潜在联系.
主要方法:
- 全基因组测序 (WGS) 在144例SUID病例和573名健康成年人对照中进行.
- 应用了使用gnomAD等位基因频率和功能后果预测的生物信息过.
- 变异分析侧重于以前和最近涉及SUID病理生理学的基因.
主要成果:
- 在SUID队列中的64.6%的88个基因中发现了基因变异.
- 73个基因与突然婴儿死亡综合征 (SIDS) /SUID/年轻人突然死亡 (SUDP) 有先前的关联.
- 在八个基因中新发现的变异与缺氧反应和反应性氧物种 (ROS) 代谢有关,没有先前的SUID联系.
结论:
- 这项研究证实并扩大了与SUID相关的遗传变异清单.
- 有相当数量的已识别的变体与心脏病相关,这表明在SUID中发挥了作用.
- 氧化还原代谢基因和心脏相关基因的新型变异为SUID提供了至关重要的机制性见解.
- 72名婴儿符合三重风险假设的标准,整合了遗传发现.
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