药物对微生物组介导的保护对肠道病原体的影响
Aman Kumar1, Ruizheng Sun1,2, Bettina Habib3
1Department of Microbial Pathogenesis and Microbial Sciences Institute, Yale University School of Medicine, New Haven, CT, USA.
许多常见的药物,不仅仅是抗生素,可以损害肠道微生物群,增加像沙门氏菌这样的感染风险. 滴毒素特别改变肠道细菌,增加感染易感性.
科学领域:
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
- 胃肠病学 胃肠病学
背景情况:
- 美国大多数人使用处方药来进行健康管理.
- 非抗生素药物可以破坏肠道微生物群和肠道平衡.
- 了解药物微生物群相互作用对于预防感染至关重要.
研究的目的:
- 为了确定与胃肠道 (GI) 感染风险增加相关的药物.
- 为了研究特定药物的影响,如狄戈辛,肠道微生物组合和感染风险.
- 阐明在宿主-微生物组-病原体相互作用中药物诱导的改变背后的机制.
主要方法:
- 在15年内对超过100万个人的人口队列进行流行病学分析.
- 在小鼠中进行实验研究,以评估狄戈辛对沙门氏菌 (Salmonella enterica) 亚种的影响. 伤寒菌 (S. Tm) 感染.
- 微生物群的表征和宿主-病原体相互作用的分析,包括免疫监测途径.
主要成果:
- 几种非抗生素药物与胃肠道感染的风险增加有关.
- 迪戈辛被确定为一种药物,它改变了肠道微生物组合,并增加了小鼠的S. Tm感染风险.
- 迪戈辛对S.Tm感染的作用被证明是通过微生物群传播的,涉及对迪戈辛敏感的β-defensin.
结论:
- 非抗生素药物可以显著影响肠道微生物群,增加对肠道病原体的敏感性.
- 迪戈辛对微生物组和感染风险的影响突显出一种特定的药物-宿主-微生物组-病原体相互作用.
- 综合流行病学和实验方法对于发现药物诱导的感染风险是有价值的.
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