基于体重指数的胃微生物群的评估,使用16S rRNA基因测序
Sang Hoon Lee1, Eun Bae Kim2,3, Sung Chul Park1
1Department of Internal Medicine, Kangwon National University College of Medicine, Chuncheon, Republic of Korea.
Frontiers in cellular and infection microbiology
|September 25, 2025
概括
在肥胖个体中,胃微生物群的多样性减少. 在正常体重和肥胖个体之间,特定的细菌物种和代谢途径有所不同,这表明胃微生物和体重指数之间存在联系.
科学领域:
- 微生物学 微生物学
- 人类健康 人类健康 人类健康
- 代谢学 代谢学 代谢学
背景情况:
- 肥胖是一种复杂的疾病,具有多因素的起源.
- 肠道微生物群在肥胖中的作用已经确立,但胃微生物群的影响不明.
- 杆菌感染可以改变胃微生物群的组成.
研究的目的:
- 研究胃微生物群的组成,不包括H. pylori.
- 探索胃微生物群和身体质量指数 (BMI) 之间的关系.
- 确定与肥胖的胃微生物变化相关的潜在代谢指标.
主要方法:
- 30名参与者被分为正常体重,超重和肥胖群体 (每组n=10).
- 排除标准包括H. pylori感染,缩性胃炎和肠道转化等.
- 用16S rRNA测序和元基因组预测分析了胃活检.
主要成果:
- 与正常体重组相比,超重/肥胖组的α多样性明显较低.
- 贝塔多样性分析显示了基于BMI类别的明显集群.
- 在超重/肥胖个体中,Muribaculum gordoncarteri,Turicibacter bilis和Duncaniella dubosii的丰度有所减少.
- 丰富的代谢途径包括脂肪酸,氨基酸,维生素和碳水化合物代谢.
结论:
- 胃微生物组合的变化与肥胖有关.
- 胃微生物失调症可能导致代谢失调.
- 需要进一步的研究来阐明将胃微生物群与肥胖联系起来的因果机制.
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