肠道微生物多样性可以缓和精神分裂症的多基因风险
Liyuan Zhang1,2,3, Xiuxia Yuan1,2,3, Xue Li1,2,3
1Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Frontiers in psychiatry
|February 16, 2024
概括
精神分裂症 (SCZ) 的多基因风险评分 (PRS) 与肠道微生物多样性和特定的细菌族群相互作用. 较高的肠道微生物多样性和某些细菌如Romboutsia的丰富性可能会减轻SCZ遗传风险.
科学领域:
- 遗传学 是一个遗传学.
- 微生物学 微生物学
- 精神病学是一个精神病学.
背景情况:
- 精神分裂症 (SCZ) 是一种由多基因因素影响的遗传性疾病.
- 人们越来越认识到肠道微生物群对SCZ发育和进展的作用.
研究的目的:
- 研究遗传倾向 (多基因风险得分) 与精神分裂症的肠道微生物组成之间的相互作用.
- 探索微生物多样性和特定细菌丰度如何改变遗传风险对SCZ的影响.
主要方法:
- 分析了159名第一次发病,从未服用过药物的SCZ患者和86名健康对照.
- 用16SrRNA测序评估便微生物组成,计算了五个α-多样性指数.
- 对SCZ的多基因风险评分 (PRS) 计算来自全基因组关联研究.
主要成果:
- 多基因风险评分 (PRS) 与SCZ风险有显著的关联.
- 香农和辛普森的多样性指数与SCZ风险相反相关.
- 在PRS和α-多样性指数之间观察到显著的相互作用,表明更高的多样性可能会缓冲遗传风险. 特定的属 (Romboutsia,Streptococcus,Anaerostipes) 显示出保护作用和调制的PRS效应.
结论:
- 肠道微生物群组成和精神分裂症的多基因风险之间存在相互作用.
- 需要进一步的实验研究来阐明这种相互作用背后的精确机制.
- 在独立的队列中进行复制是必要的,以验证这些关于肠道微生物组和SCZ遗传风险的发现.
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