自体逆行性智力发育障碍59与IMPA1 (MRT59) 相关的神经心理表征
Andre Luiz Santos Pessoa1,2, Andrea Amaro Quesada3, Paulo Ribeiro Nóbrega4,5
1Albert Sabin Children's Hospital, Fortaleza 60410-794, Brazil.
Brain sciences
|July 29, 2023
概括
在IMPA1中双性功能丧失导致自体逆向智力发育障碍59 (MRT59). 患者表现出中度至严重的智力和功能障碍,而携带者没有差异. 建议进一步进行跨学科的随访.
科学领域:
- 遗传学和神经学 遗传学和神经学
- 神经发育障碍 神经发育障碍
- 人类遗传学 人类遗传学
背景情况:
- 自体递归智力发育障碍59 (MRT59) 是由IMPA1基因中的双性功能丧失突变引起的.
- 以前的报道表明,MRT59患者有显著的智力障碍和破坏性行为,但详细的神经认知模式仍然不太了解.
研究的目的:
- 评估MRT59.9患者的特定认知特征.
- 评估MRT59患者的功能依赖水平.
- 为了比较患者,异合体携带者和非携带者家庭成员之间的认知和功能结果.
主要方法:
- 使用韦克斯勒成人智力尺度 (WASI) 进行认知评估,对9名MRT59患者,5名异合体携带者和4名非携带者家庭成员进行了认知评估.
- 使用功能独立度量 (FIM) 评估功能依赖.
- 遗传分析证实了同胞性致病变体 (c.489_493dupGGGCT) 在巴西东北部血缘家庭的所有受影响患者中.
主要成果:
- MRT59患者表现出中度至严重的智力障碍.
- 患者表现出严重的功能障碍.
- 与IMPA1变异异体携带者相比,与非携带者相比,IMPA1变异体携带者在认知或功能测量方面没有显著差异.
结论:
- 双性IMPA1突变导致显著的智力和功能障碍.
- 异卵性载体似乎没有受表型影响.
- 跨学科的随访对于管理MRT59患者的认知和功能需求至关重要.
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