在家用冷储存后评估便微生物组完整性,使用全元基因组测序,基因组组合和抗菌素耐药性基因分析
Paula Momo Cabrera1,2, Nicholas A Bokulich2, Petra Zimmermann1,3,4,5
1Department of Community Health, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland.
Microbiology spectrum
|February 11, 2025
概括
便样本的家庭冷储存时间长达六个月,可以保护肠道微生物组的完整性. 这一发现支持儿童微生物组研究的可访问的家庭样本采集.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 儿科 儿科 儿科
背景情况:
- 肠道微生物组对宿主健康至关重要,特别是在幼儿时期.
- 准确的微生物组分析需要适当的样本采集和储存.
- 步枪元基因组测序为微生物的组成和功能提供了详细的见解.
研究的目的:
- 为了研究家庭冷储存对便样本完整性的影响,用于猎枪元基因组测序.
- 评估在大型家庭微生物组研究中使用家用冷柜进行临时存储的可行性.
- 评估家庭冷储存对微生物多样性和抗菌素耐药性基因的影响.
主要方法:
- 从20名4岁以下的儿童收集了便样本.
- 样品在4°C (24小时) 和家用冷柜 (<-18°C) 中保存1周,2个月,6个月.
- 枪支元基因组测序被用来分析微生物的组成,多样性和抗菌素耐药性基因.
主要成果:
- 储存后没有观察到微生物组成的显著降解或变化.
- 孔蒂格组装质量,微生物多样性和抗菌素耐药性基因配置文件保持稳定.
- 国内冷储存并没有损害元基因组数据的完整性或可重复性.
结论:
- 室内冷储存是一种可靠且易于使用的方法,可以保存便样本进行基因组分析,长达6个月.
- 这种方法提高了大规模的可行性,在家里收集便,用于微生物组研究,包括公民科学项目.
- 研究结果支持更广泛地纳入早期微生物组研究,提高对其在人类健康中的作用的理解.
相关概念视频
01:29Modern Molecular Taxonomy
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
01:19Methods to Assess Microbial Communities
Microbial communities, comprising bacteria, archaea, and eukaryotic microorganisms, inhabit diverse ecosystems and play crucial roles in environmental and biological processes. Their diversity is defined by three main parameters: species richness (the number of distinct species), species abundance (the relative quantity of each species), and species evenness (how uniformly individual species are distributed in various locations). These factors together shape the structure and ecological balance...