黄可以逆转高水平的tigecycline耐药性,这种耐药性是由格兰氏阴性细菌中不同的机制介导的
Mengxiang Zheng1, Xiaoying Wu1, Yakun Xu1
1College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, PR China.
概括
黄素和tigecycline对抗多药耐药细菌表现出协同作用,逆转tigecycline耐药性. 这种组合增强了抗生素的疗效,并改善了体内结果,提供了对抗耐药性阴性病原体的有希望的策略.
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.
- 传染性疾病 传染性疾病
背景情况:
- 在Enterobacteriaceae中高水平的tigecycline耐药性限制了治疗选择.
- 将抗生素与黄素等辅助剂结合在一起是一个有前途的策略.
- 黄素具有抗菌性质,可以增强抗生素的疗效.
研究的目的:
- 评估黄素和tigecycline的体外和体内协同作用.
- 为了研究黄素逆转格拉姆阴性细菌中tigecycline耐药性的机制.
主要方法:
- 棋盘测试和杀时曲线评估了协同效应和抗菌活性.
- 对生物膜根除,耐药性发展和等离子体转移的评估影响.
- 在小鼠腹膜炎模型中研究了分子机制和体内疗效.
主要成果:
- 黄素和tigecycline在实验室中证明了对耐药的阴性细菌的协同作用.
- 该组合延迟了tigecycline耐药性的发展,并阻碍了等离子体的转移.
- 破坏细胞膜完整性,减少排泄活动,调节代谢途径.
结论:
- 这项研究揭示了黄素和tigecycline的协同作用.
- 突出了作为一种联合治疗策略的潜在潜力,用于对抗抗环素耐药的格拉姆阴性病原体.
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