肠道微生物群,血代谢物和自闭症谱系障碍:一个双向的门德尔随机化分析
Jiayi Zhou1, Zhang Fu1,2, Yunfei Gao3
1Tomas Lindahl Nobel Laureate Laboratory, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China.
Pathogens (Basel, Switzerland)
|November 27, 2025
概括
这项研究揭示了肠道细菌与自闭症谱系障碍 (ASD) 之间的因果关系,而血代谢物则调解了这种关系. 这些发现支持潜在的基于微生物组的ASD治疗方法.
科学领域:
- 遗传学 是一个遗传学.
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
- 神经科学是一个神经科学.
背景情况:
- 自闭症谱系障碍 (ASD) 越来越多地与肠道微生物组和血代谢物改变有关.
- 这些因素与自闭症之间的确切因果关系在很大程度上仍未确定.
- 需要先进的遗传方法来阐明这些复杂的相互作用.
研究的目的:
- 调查肠道微生物组与ASD之间的遗传因果关系.
- 探索血代谢物在肠道微生物组-ASD轴中的调解作用.
- 确定影响ASD风险的特定微生物种群和代谢物.
主要方法:
- 使用链接不平衡得分回归 (LDSC) 和双向门德尔随机化 (MR) 分析.
- 从事大规模的全基因组关联研究 (GWAS) 综合统计数据从不同的队列.
- 进行了调解MR,以评估肠道微生物对ASD的代谢物介导作用.
主要成果:
- 确定了特定肠道细菌 (例如,Lachnospiraceae NK4A136群,Sellimonas) 和ASD之间的显著遗传相关性.
- 五种肠道微生物种类通过MR对ASD风险的因果关系已被证明.
- 揭示了58种血代谢物与ASD之间的因果关系,以及对ASD的一些介导微生物影响.
结论:
- 建立了肠道微生物组和ASD之间的因果关系,由血代谢产物介导.
- 突出了通过代谢物调节影响ASD的特定微生物途径 (例如,Ruminiclostridium5,Ruminococcaceae UCG005,Sutterella).
- 为开发针对ASD的微生物向治疗策略提供了基础.
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