不同的TBL1XR1突变导致神经发育障碍的不同表型:两个病例报告
Linlin Wei1, Yonghui Yang2, Tiejia Jiang1
1Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310057, China.
BMC medical genomics
|May 28, 2025
概括
在患有神经发育障碍的患者中发现了两种新型病原体变异的Transducin beta-like 1X-linked receptor 1 (TBL1XR1) 基因. 这扩大了TBL1XR1已知的突变谱,有助于理解它在神经疾病中的作用.
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:
- TBL1XR1基因编码了一种对NCoR和SMRT核心压缩复合体至关重要的蛋白质.
- 现有的研究将48种错误的TBL1XR1变体与神经发育障碍 (如West和Pierpont综合征) 联系起来.
- 进一步研究TBL1XR1变异是必不可少的,因为它在神经疾病中的重要作用.
研究的目的:
- 识别和描述TBL1XR1基因中的新型致病变体.
- 在两个患者中,确定TBL1XR1变异与明显的临床表型相关.
主要方法:
- 采用三组全外因子测序来分析患者及其父母的遗传变异.
- 收集了临床数据,包括发育迟缓,智力障碍,和异形,以确定表型相关性.
主要成果:
- 在TBL1XR1中发现了两种新型异构致病变体:患者1的c.940G>T (p.Val314Phe) 和患者2的c.1387G>T (p.Asp463Tyr).
- 患者1呈现全球发育迟缓,智力障碍,语言迟缓和发作.
- 2号患者表现出轻微的面部形,显著的发育延迟,食困难和肌肉强度增加.
结论:
- 这两种新型TBL1XR1变异的发现扩大了与该基因相关的已知的突变谱.
- 这些发现有助于更深入地了解与TBL1XR1.1相关的神经发育障碍的遗传基础.
- 这项研究强调了继续对TBL1XR1进行基因研究的重要性,以改善诊断和潜在的治疗策略.
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