鉴定新型CDH23异体变体,导致自体逆性非综合征性听力损失
Baoqiong Liao1,2, Wuming Xie3, Rutian Liu1
1Ganzhou Maternal and Child Health Hospital, Ganzhou, Jiangxi, China.
Genes & genomics
|January 8, 2025
概括
在一个患有听力损失的孩子身上发现了CDH23基因的遗传变异. 这些新型突变,包括拼接部位变异,与自身逆性非综合征性听力损失 (NSHL) 有关.
科学领域:
- 遗传学 是一个遗传学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 分子生物学分子生物学
背景情况:
- 听力损失对孩子的发育有重大影响,遗传学占病例的50-60%.
- 自体逆性非综合征性听力损失 (NSHL) 是一种常见的先天性聋的形式.
研究的目的:
- 识别和描述导致NSHL的CDH23基因中的新型变异.
- 为了确定CDH23.23中c.2398-6G>A拼接位变异的致病潜力.
主要方法:
- 进行了临床评估和全外体序列 (WES) 测序.
- 进行了体外剪接试验,以评估变体的致病性.
主要成果:
- 在CDH23中发现了两种新型化合物异构型变体:c.2398-6G>A和c.6068C>A (p. Ser2023Ter).
- 这种c.2398-6G>A变异导致异常拼接,导致移和截断的CDH23蛋白.
结论:
- 在CDH23中出现的新型化合物异构突变与自身逆性NSHL有关.
- 这项研究扩展了CDH23中已知的突变,并增强了对其拼接位变异在听力损失中的理解.
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