线粒体DNA变异的表型异质性 m.13513 G > A 变异
1Neurological Department, Klinik Landstrasse, Messerli Institute, Vienna, Austria.
Journal of pediatric genetics
|November 6, 2024
概括
线粒体DNA变体m.13513G>A导致各种线粒体疾病 (MID). 本综述强调了其多样化的表型,包括利氏综合征和MELAS,并强调了疑似病例的遗传测试.
科学领域:
- 遗传学 是一个遗传学.
- 线粒体生物学 线粒体生物学
- 神经学 神经学
背景情况:
- 线粒体DNA (mtDNA) 变体m.13513G>A是已知的线粒体疾病 (MID) 的原因之一.
- 与这种变体相关的表型变异性需要全面理解,以便准确诊断和管理.
研究的目的:
- 审查和综合最近和历史发现的mtDNA变体m.13513G>A.A.的表型异质性.
- 整合有关患者人口统计,临床表现和与这种变种相关的结果的信息.
主要方法:
- 使用PubMed和谷歌学者进行了系统的文献审查.
- 搜索词集中在mtDNA变异m.13513G>A和相关的线粒体疾病上.
- 截至2021年7月,分析了至少50名报告患者的数据.
主要成果:
- 这种mtDNA变体m.13513G>A呈现出高度可变的表型,通常包括利氏综合征 (LS) 和线粒体脑病变,乳酸性化和类似中风的发作 (MELAS).
- 报告的病例 (n=50) 的年龄范围从0岁到63岁,不同组织的异质体水平 (0-86%) 不同.
- 还观察到像MELAS/LS这样的重叠综合征和罕见的非综合征表现,在LS患者中观察到的结果更差.
结论:
- mtDNA变体m.13513G>A是综合征和非综合征线粒体疾病的重要原因.
- LS,MELAS和Leber遗传性视神经病变 (LHON) 是当这种变体存在时需要考虑的关键综合征性MID.
- 对于怀疑MID和母性遗传的患者,建议进行全面的mtDNA测序,以识别这种和其他罕见变异.
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