通过在日本进行的一项全国性研究和文献审查,解读氨酸缺乏症的突变背景
Jun Kido1,2,3, Keishin Sugawara3, Sotiria Tavoulari4
1University Children's Hospital Zurich and Children's Research Centre, University of Zurich, Zurich, Switzerland.
Human mutation
|May 1, 2025
概括
素缺乏症 (CD) 是一种影响素载体的遗传疾病. 特定的SLC25A13突变,特别是c.852_855del,显著影响患者的疾病严重程度和临床结果.
科学领域:
- 遗传学 是一个遗传学.
- 代谢障碍 代谢障碍 代谢障碍
- 分子生物学分子生物学
背景情况:
- 素缺乏症 (CD) 是一种与SLC25A13基因突变相关的自体逆向性疾病,影响线粒体素载体.
- 疾病表现为年龄依赖的表型,包括新生儿肝内胆固醇症 (NICCD),发育不良和脂质不良症 (FTTDCD) 以及青少年/成人发病形式 (AACD).
研究的目的:
- 在CD患者中编译已知的基因型.
- 研究特定SLC25A13基因型对素缺乏症临床过程的影响.
主要方法:
- 在日本进行了一项全国性调查和一项文献综述.
- 分析了345名CD患者的数据 (285名NICCD,19名NICCD后,41名AACD) 具有68个已识别的遗传变异.
主要成果:
- 最常见的是c.852_855del变异,在NICCD/NICCD后42%的患者和49%的AACD患者中发现.
- 这种变种,即使在复合异构性中,也与严重的结果有关,如高血,认知障碍,矮身,肝硬化和胰腺炎,有时需要进行肝移植.
- 两个常见的AACD变异,c.852_855del和c.1177+1G>A,在这个患者群体中占了48%以上的等位基因.
结论:
- 某些SLC25A13基因型在CD患者中很常见,并显著影响临床结果.
- 导致严重截断的氨酸蛋白的基因型特别与不良的临床表现有关.
- 这种c.852_855del变种是不同CD表型中疾病严重程度的主要决定因素.
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