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在瓦伦西亚社区的脊柱肌肉缩的试点新生儿查计划的结果

Alba Berzal-Serrano^1,2, Belén García-Bohórquez^1,2,3, Elena Aller^1,2,3,4

¹Cellular, Molecular and Genomics Biomedicine Group, La Fe Health Research Institute, 46026 Valencia, Spain.

International journal of neonatal screening

|January 23, 2025

概括

新生儿对脊髓肌缩 (SMA) 的查对于早期诊断至关重要. 这项研究发现发病率为1/7890,强调需要广泛的新生儿查计划,以便及时治疗.

科学领域:

遗传学遗传学是一个
神经学神经学
儿科儿科儿科

背景情况:

脊柱肌缩 (SMA) 是一种严重的神经肌肉疾病,由SMN1基因删除引起.
早期诊断和在症状出现之前的治疗显著改善了患者的结果.
新生儿查 (NBS) 对于在最早的阶段识别SMA病例至关重要.

研究的目的:

通过使用干血斑 (DBS) 来评估SMA定量PCR (qPCR) 查测试的有效性.
通过NBS,通过NBS确定西班牙瓦伦西亚社区SMA的发病率.
评估通过NBS检测到的SMA早期干预的可行性.

主要方法:

查了31560个干血斑样,使用qPCR检测SMN17.
通过使用多重结依赖探针放大 (MLPA) 和AmplideX PCR/CESMN1/2Plus套件,对阳性SMA病例的遗传确认.
在已确认的SMA患者中分析SMN2基因拷贝数.

主要成果:

在31560个查样本中确定了4个阳性SMA病例,其发病率为1/7890.
两名被诊断为婴儿的婴儿出现了严重的低血压,使他们无法接受治疗.
有两个SMN2副本的两个症状前的婴儿及时接受了Risdiplam治疗.
遗传确认和SMN2复制数分析一致.

结论:

广泛实施SMA新生儿查对于早期检测和干预至关重要.
通过NBS及时诊断可以进行症状前治疗,显著改善预后.
这项研究强调了官方SMA NBS计划对于最佳患者护理的必要性.

关键词:

一个SMN1的SMN1 干燥的血液斑点干燥的血液斑点多重复 qPCR 是一个多重复的 qPCR.新生儿查新生儿查脊柱肌肉缩脊柱肌肉缩脊柱肌肉缩

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