空气污染物和肌缩性侧面硬化症之间的因果关系和共享基因:一个大规模的遗传分析
Zhihao Li1, Jie Wen2,3, Wantao Wu4
1Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
CNS neuroscience & therapeutics
|July 6, 2024
概括
暴露于细颗粒物 (PM2.5) 和氧化 (NOx) 可能因果上增加肌缩性侧面硬化症 (ALS) 的风险. 减少空气污染的暴露可能对预防ALS至关重要.
科学领域:
- 环境健康 环境健康
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
背景情况:
- 包括PM2.5,NOx和NO2在内的空气污染物被怀疑与肌缩性侧面硬化症 (ALS) 有关.
- 现有的观察研究表明存在潜在关联,但因果关系和潜在机制尚不清楚.
研究的目的:
- 调查暴露于PM2.5,NOx和NO2与患ALS的风险之间的潜在因果关系.
- 阐明将空气污染物暴露与ALS病原发生联系起来的生物机制.
主要方法:
- 利用公开可用的全基因组关联研究数据集,将单核酸多态 (SNP) 作为仪器变体.
- 进行了两个样本的孟德尔随机化 (MR) 和转录组全域关联 (TWAS) 分析.
- 确定了空气污染物和ALS之间的共享基因,并预测了监管网络.
主要成果:
- MR 分析表明,更高的PM2.5 (OR: 2.40) 和NOx (OR: 2.35) 暴露在基因上增加了ALS发病率.
- 对于NO2也观察到类似的趋势,尽管在统计学上并不显著.
- TWAS分析发现TMEM175和USP35是PM2.5和ALS之间共享的基因,它们在相同的方向上起作用.
结论:
- 高度暴露于PM2.5和NOx可能导致ALS风险增加.
- 减轻空气污染物暴露的策略,如空气净化,可能对预防ALS很重要.
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