阻塞性睡眠呼吸暂停和代谢功能障碍相关的脂肪肝疾病之间的关联:从全面的孟德尔随机化和基因表达分析的见解
Tianyu Ma1, Chunyan Liao2, Wenhui Chen3
1School of Medicine, Jinan University, Guangzhou, Guangdong, 510630, People's Republic of China.
Nature and science of sleep
|July 14, 2025
概括
阻塞性睡眠呼吸暂停 (OSA) 因果性地增加了代谢功能障碍相关的脂肪肝疾病 (MAFLD) 的风险. OSA还调解了人体质量指数.
科学领域:
- 遗传学和生物信息学
- 代谢和肝脏疾病
- 睡眠医学 睡眠医学
背景情况:
- 阻塞性睡眠呼吸暂停 (OSA) 与代谢功能障碍相关的脂肪肝疾病 (MAFLD) 有关.
- 连接OSA和MAFLD的确切因果关系和分子机制尚未完全理解.
- 研究共享的生物标志物对于理解它们之间的关系至关重要.
研究的目的:
- 调查OSA和MAFLD之间的因果关系.
- 探索身体质量指数 (BMI) 在这种关系中的调解作用.
- 通过使用孟德尔随机化和生物信息学来识别共享的生物标志物和潜在机制.
主要方法:
- 使用两样本和网络门德尔随机化 (MR) 与全基因组关联研究 (GWAS) 数据用于OSA和MAFLD.
- 采用差异基因表达分析和加权基因共同表达网络分析 (WGCNA) 来识别交叉基因.
- 进行功能丰富 (GO,KEGG),蛋白与蛋白相互作用 (PPI) 网络和免疫细胞透分析 (ssGSEA).
主要成果:
- MR 分析表明,OSA 显著增加了 MAFLD 的风险 (OR=1.40,p=0.002).
- 在BMI对MAFLD的影响中,OSA占62.3%.
- 确定了42个交叉基因,其中四个枢纽基因 (FOS,EGR1,NR4A1,JUN) 与免疫细胞透有关;三种免疫细胞表型与这两种疾病有关.
结论:
- 阻塞性睡眠呼吸暂停对MAFLD有因果影响.
- OSA作为BMI对MAFLD的影响的调解者.
- 关键基因和免疫细胞表型与OSA和MAFLD的共享病原发生有关.
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