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精细化肠道殖民模式Zophobas morio幼虫模型使用口服的耐药性大肠杆菌的口服

Yasmine Eddoubaji¹, Claudia Aldeia², Dik Heg³

¹Institute for Infectious Diseases (IFIK), University of Bern, Bern, Switzerland; Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland.

Journal of global antimicrobial resistance

|November 4, 2024

概括

黑色虫Zophobas morio是研究大肠杆菌对肠道殖民的一个可行的模型. 麻醉幼虫和使用菌体尾酒显著改善了殖民评估和减少了细菌负载.

科学领域:

在微生物学中的昆虫模型.
抗微生物耐药性研究的研究.
细菌治疗是一种细菌治疗.

背景情况:

黑色虫Zophobas morio提供了一个替代的体内模型来研究肠道殖民.
之前的研究表明,多药耐药的大肠杆菌 (E. coli) 在28天内殖民幼虫.

研究的目的:

将Z. morio幼虫肠道殖民模式缩短到14天.
评估麻醉和细菌治疗对大肠杆菌殖民化的影响.

主要方法:

通过口腔给Z. morio幼虫的大肠杆菌菌株Ec-4901.28 (CTX-M-15,ST131) 进行了管理.
对比殖民和存活,有和没有麻醉 (冰治疗).
用INTESTI细菌菌尾酒来评估脱殖的疗效.

主要成果:

麻醉后的幼虫在第14天保持了较高的大肠杆菌负载 (10^5-6 CFU/mL) 和生存率 (99%) 与未麻醉的幼虫相比 (10^2-3 CFU/mL,76%).
菌体治疗在第14天内显著降低了麻醉幼虫中的大肠杆菌数量 (2.26 x 10^4 CFU/mL对比5.17 x 10^5 CFU/mL).

结论:

方法上的改进简化了Z. morio肠道殖民模式.
该模型有助于快速评估非殖民化战略.
这种方法与动物研究的3R原则 (取代,减少,改进) 保持一致.

关键词:

3R 3R 3R 3R 3R 3R 3R 3R 3R 3R 殖民化的殖民化这就是ESBL.埃舍里希亚大肠杆菌 (Escherichia coli) 是一个大肠杆菌.这是一个很棒的体验,Gut Gut Gut Gut.ST131 一个人的生活佐福巴斯·莫里奥·莫里奥 (Zophobas morio) 是一个

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