微乳汁稀释方法用于测试尿路微生物群的细菌和无氧细菌对抗生素敏感性的测试
Wilson Geaman1, Brian I Choi1, Jacob Kaindl1
1Department of Microbiology and Immunology, Loyola University Chicago, Maywood, Illinois, USA.
Microbiology spectrum
|May 6, 2024
概括
一种新的基于血清的介质,纽约市乳汁III (NYCIII),有效地确定了难以生长的尿道微生物的抗生素敏感性. 这种方法支持对报告不足的细菌进行标准化,改善了我们对尿路微生物群耐药性的理解.
科学领域:
- 微生物学 微生物学
- 临床诊断 临床诊断 临床诊断
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 人类尿道微生物组含有许多细菌,这些细菌很难用标准方法培养*in vitro*.
- 现有的抗生素敏感性测试方法往往对苛刻和无氧尿道微生物失败,使其耐药性概况在很大程度上未知.
- 标准的穆勒-亨顿介质不能充分支持许多临床相关的尿道物种的生长.
研究的目的:
- 评估一种基于血清的介质,纽约市乳汁III (NYCIII),以及一种乳汁微稀释方法,用于抗生素敏感性测试 (AST) 具有挑战性的尿路微生物.
- 建立一种标准化的方法来表征人体泌尿道中的苛刻,无氧和以前报告不足的细菌.
- 为了使未经表征的尿路细菌能够开发标准化的抗生素耐药性断点.
主要方法:
- 纽约市水III (NYCIII) 作为难以培养的尿路细菌的生长媒介的资格.
- 使用NYCIII进行高通量抗生素敏感性测试的微稀释方法的实施.
- 测试NYCIII对一系列苛刻,非苛刻和无氧性尿道微生物的生长和AST的能力,包括Aerococcaceae,Lactobacillaceae和Actinomycetaceae家族的物种.
主要成果:
- NYCIII微乳液稀释证明有效地确定了各种尿道微生物群物种的抗生素敏感性,包括苛刻和无氧细菌.
- 该方法成功地特征了缺乏已建立的临床和实验室标准研究所 (CLSI) 准则的微生物.
- NYCIII证明了其作为一个协调的媒介,支持AST的能力,对各种各样的尿道微生物,无论是苛刻的还是不苛刻的.
结论:
- 纽约市III微稀释方法是对报告不足且难以生长的尿道微生物的抗生素敏感性测试的可行方法.
- 建议对这种方法进行标准化,与CLSI标准相提并论,以方便对未表征的尿路细菌进行耐药性测试.
- 这种方法解决了了解人类尿道微生物群的抗生素耐药性景观的关键差距.
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