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在早期使用抗生素的情况下,早产新生儿抗生素耐药性增加
Amanda Ojeda1, Oluwamayowa Akinsuyi1, Kelley Lobean McKinley1
1Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, Florida, USA.
mSphere
|October 7, 2024
概括
抗生素耐药性基因在早产儿中很常见,即使没有直接接触抗生素. 孕产妇使用抗生素和长时间的膜破裂显著影响婴儿肠道微生物群和耐药性.
科学领域:
- 新生儿微生物组研究
- 抗微生物耐药性研究研究.
- 基因组流行病学基因组流行病学
背景情况:
- 对于早发性败血症,新生儿的标准抗生素使用可能会对新生儿肠道微生物组产生负面影响.
- 早产婴儿的抗菌素耐药性是一个日益关注的问题,在新生儿重症监护室对其原因和影响的研究有限.
- 了解早期抗生素干预对早产婴儿抗生素耐药性的影响至关重要.
研究的目的:
- 通过元基因组测序,评估早产婴儿的和便样本中的抗生素耐药性基因 (ARG).
- 确定早产婴儿中ARG的流行率和类型,包括那些有或没有直接接触抗生素的婴儿.
- 探索抗生素暴露,孕产妇因素和新生儿肠道微生物组和抵抗组之间的关系.
主要方法:
- 用30名早产婴儿的和便样本进行元基因组测序的回顾性研究.
- 进行了对抗生素耐药性基因 (ARG) 的分类学分析和鉴定.
- 分析包括对有或没有直接/产后抗生素暴露的婴儿进行比较.
主要成果:
- 所有研究的早产婴儿都有ARG,发现了175个独特的ARG,主要是对β-乳酸,四环素和氨基糖化物耐药性.
- 23%的确定的ARG存在于没有直接或产后抗生素暴露的婴儿中.
- 与接受过抗生素治疗的婴儿相比,未接受过抗生素治疗的婴儿表现出更高的微生物和抗体多样性.
- 产后的抗生素暴露与增强的β-lactam/四环素耐药性和改变的细菌耐药性机制有关.
- 随着婴儿年龄的增长,ARG的患病率增加,而不管直接接触过抗生素.
结论:
- 即使没有直接接触抗生素,早产婴儿中ARG的高患病率也是显而易见的,并且受到母亲使用抗生素和长期膜破裂等因素的影响.
- 早期的抗生素暴露会改变早产婴儿的微生物组和抵抗性,可能导致长期的健康后果.
- 保护新生儿健康需要谨慎的抗生素实践和加强产前护理,以打击日益增长的抗菌素耐药性.
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