肠道微生物组与内动脉瘤风险的关联:孟德尔的随机化研究
Chencheng Ma1,2, Weiwei Zhang3, Lei Mao1,2
1Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
BMC neurology
|July 15, 2023
概括
这项研究使用了门德尔的随机化来探索肠道细菌与内动脉瘤 (IA) 风险之间的因果关系. 某些肠道细菌,如Clostridia和Streptococcus,可能会增加IA风险,而其他细菌,如Oscillospira,可能会降低IA风险.
科学领域:
- 遗传学 遗传学 是一个
- 微生物学 微生物学
- 流行病学 流行病学
背景情况:
- 内动脉瘤 (IA) 是一种脑血管疾病,具有显著的发病率和死亡率.
- 人们越来越认识到肠道微生物组在各种健康状况中的作用,但其与IA风险的具体联系仍然不清楚.
研究的目的:
- 调查与肠道微生物组相关的遗传变异和发展内动脉瘤 (IA) 的风险之间的潜在因果关系.
- 利用两个样本的门德尔随机化 (MR) 来从观测数据中推断因果关系.
主要方法:
- 进行了两组MR分析,使用不同的单核酸多态 (SNP) 显著性值 (全基因组和位置范围).
- 肠道微生物组的遗传关联估计来自18,473名个体的全基因组关联研究 (GWAS).
- 对IA的总结级统计数据来自一个大型GWAS,包括79,429人 (7,495例,71,934对照).
主要成果:
- 使用全局显著性,包括Clostridia,Adlercreutzia和Victivallis在内的特定肠道细菌显示出与未破裂的内动脉瘤 (UIA) 风险的积极关联.
- 进一步的分析表明,奥斯基洛斯皮拉与UIA风险有负面关联,而苏特雷拉和罗多斯皮里拉科则显示出积极的关联.
- 在全基因组显著性值时,Streptococcus和Peptostreptococcaceae被确定为可能增加UIA风险.
结论:
- 门德尔的随机化分析表明,肠道微生物群组成对内动脉瘤风险的潜在因果作用.
- 这些发现突出了特定的肠道细菌,在IA发展的背景下,这些细菌可能是有益的或有害的.
- 需要进一步的研究来阐明这些关联背后的机制.
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