白物质高强度体积与日本一般人口中罕见NOTCH3变体之间的显著相关性
Ikuko Mizuta1, Fumio Yamashita2,3,4, Yoichi Sutoh3,4
1Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Geriatrics & gerontology international
|February 11, 2026
概括
像NOTCH3这样的遗传基因可能会影响日本老年人的白质超强度 (WMH) 量. 这项研究发现了罕见的NOTCH3变体和WMH体积之间的相关性,这表明与大脑小血管疾病存在遗传联系.
科学领域:
- 神经学 神经学
- 遗传学 是一个遗传学.
- 放射学 放射学是一门学科.
背景情况:
- 大脑小血管疾病 (CSVD) 在老年人中很常见,白质超强度 (WMH) 是一个关键的MRI发现.
- 了解CSVD的遗传基础对于识别风险人群和制定有针对性的干预措施至关重要.
研究的目的:
- 调查与CSVD相关的遗传基因对一般日本人口的MRI发现的贡献.
- 具体来说,要检查NOTCH3和ABCC6等基因的变异和CSVD标记物,如WMH和缺口之间的关系.
主要方法:
- 分析了MRI数据和50岁以上的324名Tohoku医疗大银行 (TMM) 队列中的遗传变异.
- 专注于NOTCH3,ABCC6,COL4A1,COL4A2,GLA,HTRA1和TREX1基因的变异,并根据年龄,性别,高血压和糖尿病等因素进行调整.
- 基于基因的关联测试 (负载测试,SKAT) 用于分析遗传变异和WMH/缺陷体积之间的关系.
主要成果:
- 在ABCC6基因 (n=20) 中发现了致病变体.
- 在使用序列内核关联测试 (SKAT) 的白质超强度 (WMH) 量和罕见的NOTCH3变体之间观察到显著的相关性 (p=0.027在完全调整后).
- 在内大动脉狭窄/封闭 (ICASO) 和RNF213 p.Arg4810Lys变体之间没有发现显著的关联.
结论:
- 这项研究表明,NOTCH3变体可能在确定日本一般人口中白质强度过高 (WMH) 量的过程中发挥作用.
- 这一发现突显了对大脑小血管疾病 (CSVD) 发病的潜在遗传贡献.
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