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Updated: Jun 27, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Published on: October 15, 2019

儿童肥胖和肠道微生物群之间的关联:基于16S rRNA基因测序的队列研究

Xu-Ming Li¹, Qing Lv², Ya-Jun Chen³

¹Laboratory Department, Nanjing Medical University Affiliated Obstetrics and Gynecology Hospital (Nanjing Maternal and Child Health Hospital), Nanjing 210004, Jiangsu Province, China.

World journal of gastroenterology

|May 1, 2024

概括

儿童肥胖与下肠道微生物多样性有关. 肥胖儿童与正常体重的同龄人相比,表现出明显的肠道细菌组成,在Prevotella和Bacteroides丰富度上有差异.

科学领域:

微生物组研究的研究.
儿科卫生健康儿科卫生健康
肥胖研究的研究.

背景情况:

儿童肥胖是一个日益严重的公共卫生问题.
肠道微生物群在宿主新陈代谢和健康中起着至关重要的作用.
了解儿童肠道微生物群的差异对于预防和治疗至关重要.

研究的目的:

确定8-12岁的肥胖儿童与正常体重儿童的特征性肠道属.
为儿童肥胖的机制研究和预防策略提供基础.
用16S rDNA测序分析肠道微生物群的多样性和组成.

主要方法:

包括30名肥胖儿童和30名体重正常的儿童 (8-12岁),根据年龄和性别进行匹配.
收集的问卷和身体测量 (BMI,体脂百分比).
在便样本上进行16S rDNA测序,用于肠道微生物群分析.

主要成果:

肥胖儿童在肠道微生物群中具有显著较低的α多样性 (Ace,Chao1指数).
在肥胖儿童和正常体重儿童之间观察到肠道微生物群组成的显著差异.
在肥胖儿童中,Prevotella和Firmicutes的发病率更高,而在正常体重儿童中,Bacteroides和Sanguibacteroides的发病率更高.

结论:

与正常体重儿童相比,肥胖儿童的肠道微生物α多样性减少.
肠道微生物群的组成在肥胖和正常体重儿童之间有显著差异.
研究结果强调肠道微生物群是儿童肥胖干预的潜在目标.

关键词:

16S rDNA 测序的使用体重指数 (Body Mass Index) 是一个指数.儿童肥胖症儿童肥胖症多样性分析多样性分析属性鉴定属性鉴定我们的肠道微生物群.

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