长期获得海洛因的自我管理显著改变了肠道微生物组合和结构
Jonathan M Greenberg1,2, Andrew D Winters1,2, Branislava Zagorac1
1Department of Psychiatry & Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States.
Frontiers in psychiatry
|March 13, 2024
概括
长期的海洛因自我管理显著改变了大鼠的肠道微生物组结构和功能. 这些变化可能会促进肠道炎症,并表明阿片类药物使用障碍的潜在治疗点.
科学领域:
- 微生物学 微生物学
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 慢性阿片类药物使用障碍与胃肠道 (GI) 功能障碍有关,包括便秘和运动减少.
- 阿片类药物诱导的胃肠道问题可能源于受损的肠道屏障功能和改变的肠道微生物组合.
- 长期使用阿片类药物对肠道微生物群的具体影响仍然在很大程度上是未知的.
研究的目的:
- 在大鼠模型中,研究长时间的海洛因自我管理对肠道微生物组结构和功能的影响.
- 为了确定与海洛因自我管理和灭绝相关的微生物和功能途径改变.
主要方法:
- 利用16S rRNA基因测序分析了三个独立的老鼠队伍的肠道微生物组合.
- 在不同阶段评估微生物的α和β多样性:原始,自我管理和灭绝后恢复.
- 使用MaAsLin2进行高维类比较,PICRUSt2用于预测功能路径.
主要成果:
- 与盐水对照组相比,海洛因自我给药并没有改变总体微生物α多样性.
- 在海洛因和盐水被束的组之间观察到β-多样性 (社区结构) 的显著差异.
- 暴露于海洛因导致特定细菌种群的变化 (例如,增加了Firmicutes,减少了Deferribacteres,增加了Patescibacteria) 并影响了代谢途径,包括增加了碳水化合物的降解和减少了维生素和脂质的生物合成.
结论:
- 长时间的海洛因自我管理显著改变了大鼠的肠道微生物组结构.
- 推断的代谢途径变化表明微生物失衡可能有利于肠道炎症和改变能量消耗.
- 确定了潜在的微生物生物标志物和功能途径,可以作为阿片类药物使用障碍治疗干预的目标.
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