精神疾病和易怒肠综合征之间的关联:双向的门德尔随机化研究
Fan Wang1, Yi-Long Liu2, Chun-Hui Jiang1
1Department of Gastroenterology, Changhai hospital, Naval Medical University, Shanghai 200433, China; National Key Laboratory of Immunity and Inflammation, Naval Medical University, Shanghai 200433, China.
Journal of affective disorders
|September 11, 2024
概括
这项研究使用了门德尔的随机化来研究精神疾病和易怒肠综合征 (IBS) 之间的因果关系. 研究结果表明,主要抑郁症和精神分裂症因果影响IBS,IBS也影响主要抑郁症.
科学领域:
- 精神病学和胃肠道学
- 遗传流行病学遗传流行病学
- 复杂疾病病因学 复杂疾病病因学
背景情况:
- 刺激性肠综合征 (IBS) 经常与精神疾病并发,但因果关系仍在争论中.
- 区分因果关系,并发关系或偶然关系对于理解疾病机制至关重要.
研究的目的:
- 使用孟德尔随机化 (MR) 分析来确定精神疾病对IBS的因果关系.
- 调查IBS和精神疾病之间的潜在双向因果关系.
主要方法:
- 利用来自大型队列的全基因组关联研究 (GWAS) 总结数据,包括精神病基因组学联盟 (PGC).
- 应用了三种MR方法:反变量加权 (IVW),加权中位数 (WM) 和MR-Egger回归.
- 通过使用科克兰的Q统计和MR-Egger截图来评估异质性和水平向性.
主要成果:
- 通过MR-IVW确定了精神分裂症对IBS的显著因果作用.
- 有证据表明,主要抑郁症 (MDD) 和精神分裂症对IBS有因果关系.
- 观察到双向因果关系,IBS也表明对MDD的因果作用.
- 在不同疾病中,SNP遗传性有很大差异,双相情感障碍和精神分裂症的遗传性很高,MDD,焦虑,PTSD和IBS的遗传性较低.
结论:
- 建立了主要抑郁症和精神分裂症与易怒肠综合征之间的因果关系.
- 证实了双向关系,表明IBS也可以因果影响主要抑郁症.
- 提供了强有力的证据,证明特定精神疾病与IBS之间的关联中存在因果因素.
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