多重线粒体功能障碍综合征3病例的临床特征
1School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China.
Molecular genetics & genomic medicine
|June 26, 2024
概括
婴儿多重线粒体功能障碍综合征3型 (MMDS3) 呈现出由于IBA57突变而导致的神经回归和肌肉衰弱. 通过基因检测和MRI进行早期诊断对于管理这种罕见的疾病至关重要.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 神经学 神经学
- 线粒体生物学 线粒体生物学
背景情况:
- 多重线粒体功能障碍综合征3型 (MMDS3) 是一种罕见的遗传疾病.
- 它是由IBA57基因的突变引起的,影响线粒体功能.
- MMDS3主要影响婴儿,导致严重的神经和发育挑战.
研究的目的:
- 为了阐明由IBA57突变引起的MMDS3的临床和遗传表型.
- 介绍一个患有急性神经衰退的病人的案例研究.
- 审查有关MMDS3和IBA57突变的现有文献.
主要方法:
- 一个涉及患有神经衰退的儿科患者的案例研究.
- 收集和分析临床数据,实验室结果和发育评估.
- 用PubMed和CNKI数据库进行全外体序列测序,用于基因突变识别和文献审查.
主要成果:
- 患者表现出运动衰退,低血压,过度反射和鼻,血液中乳酸盐水平升高.
- 大脑MRI揭示了白质异常,暗示代谢性白脑病变.
- 整体外体序列测定确定了IBA57基因 (c.286T>C和c.992T>A) 中的两个异构基因突变.
- 文献搜索证实了全球56例MMDS3报告的病例,其中35例在中国,主要涉及错误或无意义突变.
结论:
- MMDS3通常在婴儿期表现出诸如食困难,神经衰退和肌肉衰弱等症状.
- 诊断依赖于乳酸水平升高,多系统功能障碍,特征性MRI发现,以及全外体序列测序.
- 目前,尾酒疗法为MMDS3患者提供了症状缓解.
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