扩大与PPP1R21相关的神经发育障碍的表型
Mohammed Almannai1,2, Dana Marafi3,4, Maha S Zaki5,6
1Genetics and Precision Medicine department (GPM), King Abdullah Specialized Children's Hospital (KASCH), King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNG-HA), Riyadh, Saudi Arabia.
Clinical genetics
|February 15, 2024
概括
PPP1R21基因中的致病变体与罕见的神经发育障碍有关. 这项研究扩大了对这种疾病的理解,提供了新的患者数据和遗传发现.
科学领域:
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
- 分子生物学分子生物学
背景情况:
- PPP1R21基因编码了一种对内体细胞成熟至关重要的蛋白质.
- 在PPP1R21中双性致病变体以前与13个个体的综合征性神经发育障碍有关.
研究的目的:
- 介绍来自9个家庭的PPP1R21相关神经发育障碍的11名额外个体的临床,放射和分子发现.
- 为了进一步描述与PPP1R21变体相关的表型.
主要方法:
- 对11名新患者进行临床评估.
- 基因分析以确定PPP1R21基因中的变异.
- 对神经成像研究结果的审查.
主要成果:
- 在PPP1R21中发现了8种不同的变异,包括6种新变异.
- 所有的个体都呈现出全球发育迟缓和低血压.
- 观察到一种一致的异形特征模式,包括粗的面部特征.
- 常见的神经成像发现包括75%的病例中延迟的髓化和特征性的侧腔室异常.
结论:
- 与PPP1R21相关的神经发育障碍表现出一致的表型.
- 这种疾病应考虑在具有发育迟缓/智力障碍和粗面部特征的血缘亲属中.
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