在BSN中的变异,编码前突触蛋白Bassoon,导致一种具有广泛表型范围的新型神经发育障碍
Stacy G Guzman1,2, Sarah M Ruggiero2,3,4,5, Shiva Ganesan2,3,4,5
1Department of Biochemistry, Biophysics, and Chemical Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA.
medRxiv : the preprint server for health sciences
|February 24, 2025
概括
在BSN基因中的破坏性变异会导致新的突触障碍. 这种情况呈现出各种神经发育和症状,在不同年龄组的严重程度上有所不同.
科学领域:
- 遗传学和神经学 遗传学和神经学
- 突触生物学 突触生物学
- 神经发育障碍 神经发育障碍
背景情况:
- 突触功能基因变异是已知的神经发育障碍和的原因.
- 前突触蛋白 Bassoon (BSN) 在神经元功能中起着至关重要的作用.
研究的目的:
- 研究BSN变体在神经发育障碍中的作用.
- 定义与BSN蛋白质截断变体 (PTVs) 相关的表型谱.
主要方法:
- 描述了14名患有新的破坏性BSN变种的个人.
- 确定了15名额外的个人与BSN PTVs从大型生物银行.
- 使用人类现象型本体学 (HPO) 标准化临床特征,并对大量神经发育障碍 (NDD) 患者进行关联分析.
主要成果:
- 确定了29名BSN PTV患者,这些患者有 (45%),发烧发作 (25%),ADHD (25%),自闭症行为 (17%),发育迟缓 (38%),肥胖 (34%) 和言语迟缓 (28%) 等共同特征.
- 观察到表型变异性,成年人的特征较轻,一些人没有明显的神经发育问题.
- 对14895名NDD个体的关联分析将BSN变异与66种临床特征联系起来,包括发烧性和行为抑制,并显示具有BSN变异的个体在表型上比预期更相似.
结论:
- 确定BSN变异是导致一种新的突触障碍的原因.
- 这种疾病表现出广泛的表型范围,影响了整个年龄段的个体.
- 综合多种数据源的计算表型方法在识别基因与疾病关系方面是有效的.
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