在接受长期护理的患者中移植微生物群:哨兵反非随机临床试验
Michael H Woodworth1, Ahmed Babiker1, Radhika Prakash-Asrani1
1Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia.
JAMA network open
|July 24, 2025
概括
便微生物种移植 (FMT) 对于长期急性护理医院患者具有多药耐药生物体 (MDROs) 似乎是安全和可接受的. 需要进一步的研究来确认减少MDRO殖民和抗生素使用的潜在益处.
科学领域:
- 传染性疾病 传染性疾病
- 胃肠病学 胃肠病学
- 微生物学 微生物学
背景情况:
- 在长期急性护理医院 (LTACH) 患者中,肠道多药耐药生物体 (MDRO) 殖民是常见的,增加了感染和传播风险.
- 目前缺乏FDA批准的疗法来减少肠道MDRO殖民.
研究的目的:
- 评估便微生物群移植 (FMT) 的安全性和可接受性,在用MDROs定居的LTACH患者中.
主要方法:
- 一个单中心,开放标签,非随机临床试验,涉及42名LTACH患者 (10名FMT接受者,32名对照).
- 在没有抗生素或肠道制备的情况下,通过胃口管或阴道注射FMT.
- 通过对长达6个月的不良事件进行安全评估;通过周围培养物监测MDRO殖民.
主要成果:
- FMT是安全的,耐受性很好,没有严重的不良事件归因于该程序;报告了轻微的诱导不良事件.
- 虽然在最后一次访问时,所有FMT接受者仍然服用MDRO,但事后分析表明,与对照人群相比,细菌病症,肠道病原体占主导地位和抗生素使用可能有数量减少.
- 这些观察到的差异没有达到统计学意义,这可能是由于研究的样本规模有限.
结论:
- 便微生物群移植 (FMT) 是MDRO殖民的LTACH患者的安全和可接受的干预措施.
- 初步发现表明,FMT在减少细菌病,病原体主导和抗生素使用方面具有潜在的益处.
- 需要进行更大规模的随机对照试验,以最终评估FMT在该患者群体中的疗效.
相关概念视频
Introduction to the Human Microbiota
Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity, and disease...
Development of Human Microbiota
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
Microbiota of the Large Intestine
The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...


