患有5q-SMA的儿童神经发育障碍 - 新生儿查后2年
Heike Kölbel1, Marius Kopka1, Laura Modler1
1Department of Pediatric Neurology, Centre for Neuromuscular Disorders, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, Essen, Germany.
Journal of neuromuscular diseases
|November 6, 2023
概括
脊髓肌缩症 (SMA) 和两个SMN2副本的儿童表现出认知发育受损,即使在早期治疗. 这突显了SMN蛋白在早期大脑发育中的关键作用.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 儿科 儿科 儿科
背景情况:
- 减少生存运动神经元 (SMN) 蛋白质表达是脊髓肌肉缩 (SMA) 的特征.
- 之前的研究表明,SMA患者的认知功能是可变的,但通过新生儿查发现的患者的认知发展不太了解.
研究的目的:
- 通过新生儿查确定SMA的婴儿的认知发展.
- 评估SMN2基因拷贝数对早期诊断的SMA认知结果的影响.
主要方法:
- 使用贝利婴幼儿发育量表 (贝利III) 进行的发育测试对40名通过新生儿查确定的SMA患者 (年龄23-42个月) 进行了测试.
- 记录了患者的SMN2基因拷贝数 (2,3或≥4个拷贝).
主要成果:
- 认知分数平均为94.55,语言分数为86.09,运动分数为81.28.
- 14名儿童在认知方面得分低于平均水平,10名儿童有2个SMN2副本.
- 认知分数对SMN2副本数比运动分数更敏感.
结论:
- 在有2个SMN2副本的SMA儿童中观察到认知发育障碍,即使早期治疗.
- 这些发现强调了SMN蛋白在早期大脑发育中的关键作用.
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