在患有线粒体白细胞脑病变的患者中的神经成像模式
Sonal Sharma1, James Peterson2, Cesar Augusto Alves3
1Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States of America; Mitochondrial Medicine Frontier Program, Division of Human Genetics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, United States of America; Division of Child Neurology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, United States of America.
Journal of the neurological sciences
|July 13, 2025
概括
线粒体疾病 (MD) 可以导致白脑病变,影响白质 (WM). 儿科患者的特定MRI模式可以帮助确定这些WM异常的遗传原因.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 放射学 放射学是一门学科.
背景情况:
- 白内核病包括白质 (WM) 异常.
- 主要线粒体疾病 (MD) 影响神经质细胞中的线粒体功能.
- 了解MD中的WM异常对于临床管理至关重要.
研究的目的:
- 为了确定特定的神经成像模式的白质 (WM) 参与的儿科患者与遗传确认线粒体疾病 (MD).
- 为了提高诊断准确度,将这些模式与遗传病因相关联.
主要方法:
- 对192名经遗传确认的MD患者进行了回顾性分析.
- 对142名患者的神经成像 (MRI) 数据的审查,重点关注WM和其他大脑结构.
- 收集人口统计,遗传和生物标记数据 (CSF蛋白,血乳酸).
- 统计分析以将MRI特征与遗传突变 (mtDNA与nDNA) 相关联.
主要成果:
- 30%的MD患者 (43/142) 呈现出白质异常.
- 常见的WM发现包括周周,扩散和多焦点病变,51%的病例涉及体.
- 观察到的模式包括囊性变化 (19%),扩散限制 (42%) 和WM体积损失 (40%).
- 基因分析显示,nDNA (70%) 的突变比mtDNA (30%) 更频繁.
结论:
- 特定的神经成像模式与线粒体疾病 (MD) 中的白内障相关.
- 例如,MTRFR突变中的周周结节参与和FBXL4突变中的扩散异常.
- 这些发现有助于临床医生根据MD患者的WM表现识别基因病因.
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