使用16S rRNA基因测序来识别婴儿和儿童突然意外死亡的细菌病原体
Lily Gates1, Talisa Mistry2, Olumide Ogunbiyi2
1Infection, Immunity and Inflammation, UCL GOS Institute of Child Health, London, United Kingdom.
Frontiers in microbiology
|July 3, 2023
概括
16S rRNA基因测序可以识别婴儿和儿童突然意外死亡 (SUDIC) 病例中未被检测到的细菌感染. 这种分子方法改善了感染诊断,潜在地减少了无法解释的死亡.
科学领域:
- 法医病理学 法医病理学
- 微生物学 微生物学
- 分子诊断学 分子诊断学
背景情况:
- 婴儿突然意外死亡 (SUDI) 是新生儿后死亡的主要原因.
- 大约40%的SUDI病例在调查后仍然无法解释.
- 未被检测到的感染是一些不明原因死亡的可疑原因.
研究的目的:
- 调查16S rRNA基因测序在识别SUDI和婴幼儿突然意外死亡 (SUDIC) 病例中死后 (PM) 组织中的细菌感染中的实用性.
- 确定这种分子技术是否可以提高在不明原因死亡中感染的诊断.
主要方法:
- 16S rRNA基因测序在来自SUDIC病例的冷PM组织上进行.
- 病例被分为解释的非传染病,传染病和未知的死亡原因.
- 基于序列阅读和多样性的标准被开发出来,以确定可能的感染.
主要成果:
- 16S rRNA基因测序在5/5已知的细菌感染病例中确定了致病原体,超过了细菌培养 (3/5).
- 该技术证实了在例行调查中发现的生物.
- 应用开发的标准,20% (4/20) 的不明原因的SUDIC病例显示出以前未被检测到的细菌感染的迹象.
结论:
- 16S rRNA基因测序是一种可行且有效的工具,用于研究PM组织,以改善感染诊断.
- 这种分子方法有可能减少婴儿和儿童不明原因死亡的数量.
- 增强的诊断能力可以提高对感染相关死亡机制的理解.
相关概念视频
Modern Molecular Taxonomy
54
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...
54
Methods of Classification and Identification
53
Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
53
Applications of Molecular Taxonomy
42
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
42


