临床外体序列测序揭示了新生儿怀疑缺氧缺血性脑病变的遗传障碍:一个回顾性分析
Christian M Parobek1,2, Roni Zemet2, Matthew A Shanahan1,2
1Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA.
Clinical genetics
|March 28, 2024
概括
遗传性疾病可以模仿新生儿的缺氧缺血性脑病变 (HIE). 一项研究发现,25%的HIE病例有潜在的遗传疾病,这表明遗传检测对诊断至关重要.
科学领域:
- 新生儿医学 新生儿医学
- 遗传学 是一个遗传学.
- 神经学 神经学
背景情况:
- 缺氧性缺血性脑病变 (HIE) 影响1000分之7的出生,导致全球近25%的新生儿死亡.
- 许多被诊断为HIE的新生儿缺乏围产期缺氧的明确证据,这表明了其他原因.
- 遗传性疾病可能会出现类似于HIE的症状,使诊断复杂化.
研究的目的:
- 调查模仿新生儿HIE遗传疾病的患病率.
- 确定遗传评估对围产期IEH的临床相关性.
主要方法:
- 从被诊断患有HIE的新生儿 (2014-2022) 的遗传外体/基因组测序数据进行了审查.
- 包括35周或更长的怀孕期出生的新生儿.
- 在神经成像上排除了心肺病理导致低氧化症或明显的产后低氧-缺血性损伤的病例.
主要成果:
- 在24名 (25%) 符合条件的新生儿中,有6名被诊断患有遗传疾病.
- 在基因 (KIF1A,GBE1,ACTA1,DUOX2,PTPN11) 和15q13.3删除中发现了变异.
- 遗传诊断甚至在没有典型的HIE指标 (如哨兵劳动事件或低Apgar分数) 的情况下也被发现.
结论:
- 遗传条件是新生儿脑病的重要,但经常被忽视的原因.
- 遗传评估在临床上是相关的,并且应考虑新生儿患有围产期HIE.
- 早期遗传诊断可以完善新生儿脑病变的理解和管理.
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