阿兹罗米具有杀菌活性,并增强了MDRAchromobacter xylosoxidans的先天免疫媒介杀死
Erlinda R Ulloa1,2,3, Armin Kousha2,4, Hannah Tsunemoto5
1Collaborative to Halt Antibiotic-Resistant Microbes (CHARM), University of California San Diego, La Jolla, CA 92093, USA.
概括
在模仿人体的条件下,阿齐思罗米对抗药物耐药的Achromobacter xylosoxidans具有杀菌活性. 标准测试可能低估了它对抗这些具有挑战性的格拉姆阴性感染的有效性.
科学领域:
- 传染性疾病 传染性疾病
- 抗微生物耐药性 抗微生物耐药性
- 微生物学 微生物学
背景情况:
- 阿齐思罗米 (AZM) 是一种广泛使用的抗生素,但标准测试表明它缺乏对抗多药耐药的格拉姆阴性细菌的活性,例如Achromobacter xylosoxidans (AX).
- 当前的抗微生物敏感性测试方法可能不能准确地反映体内环境,可能导致低估抗生素疗效.
研究的目的:
- 调查阿兹特罗米对抗抗卡巴因耐药阿克罗姆巴克特 (Achromobacter xylosoxidans) 隔离物的杀菌活性.
- 在更好地模拟人类宿主环境的生理条件下评估阿齐思罗米的疗效.
- 探索阿齐思罗米在治疗复杂,耐药性细菌感染方面的潜力.
主要方法:
- 对12种耐卡巴胺抗性Achromobacter xylosoxidans的临床分离物进行阿齐思罗米的最低抑制度 (MIC) 测试.
- 在生理条件下进行测试,包括真核细胞组织培养基,并评估与人类血液成分 (全血,血清,中性粒细胞) 的协同作用.
- 评估阿齐思罗米对预先形成的Achromobacter xylosoxidans生物膜的影响,以及对患者的组合治疗的案例研究.
主要成果:
- 在生理学测试条件下,与标准微稀释相比,在对抗卡巴因耐药的Achromobacter xylosoxidans的情况下,观察到阿兹罗米辛MIC的多倍降低.
- 亚齐思罗米证明了增强的细胞内透和同步杀死与人类血液成分,并以剂量依赖的方式抑制生物膜的形成.
- 与阿齐思罗米辛和皮佩拉林-塔扎巴克坦的联合治疗在一个患有严重的抗卡巴尼姆抗性Achromobacter xylosoxidans感染的患者中显示出治疗效益.
结论:
- 目前的标准抗微生物测试可能不准确地将阿齐思罗米归类为对抗耐药性格拉姆阴性病原体不活跃的,例如Achromobacter xylosoxidans.
- 在模仿宿主条件下,阿齐思罗米表现出显著的杀菌活性和生物膜抑制对抗耐药性Achromobacter xylosoxidans.
- 亚齐思罗米需要进一步研究治疗抗药性Achromobacter xylosoxidans感染,强调需要先进的敏感性测试方法.
关键词:
亚克罗姆巴克特 (Acromobacter xylosoxidans) 是一种有毒的植物.对抗微生物的敏感性测试.亚齐特罗米辛是一种亚齐特罗米辛.主机防御的主机防御多种药物耐药性多种药物耐药性治疗治疗治疗治疗治疗治疗更多相关视频
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