肥胖儿童和青少年的肠道微生物群:推断功能分析和机器学习算法来分类微生物
Margherita Squillario1, Carola Bonaretti2, Alberto La Valle3
1IRCCS Ospedale Policlinico San Martino Genoa, Genoa, Italy.
Scientific reports
|July 12, 2023
概括
肥胖儿童和青少年表现出明显的肠道微生物组合,具有特定的细菌和与炎症和疾病风险相关的代谢途径. 固菌/细菌体比率不是一个可靠的肥胖生物标志物.
科学领域:
- 微生物学 微生物学
- 儿童肥胖症 儿童肥胖症
- 代谢健康 代谢健康
背景情况:
- 肠道微生物组在宿主新陈代谢和健康中起着至关重要的作用.
- 肥胖是一种复杂的疾病,可能与肠道失调有关.
- 了解小儿肥胖的微生物和代谢变化是必不可少的.
研究的目的:
- 分析肥胖与正常体重儿童和青少年的便微生物组合和相关代谢途径.
- 确定与儿科肥胖相关的特定微生物种群和推断途径.
- 研究肠道微生物群,肥胖和炎症标志物之间的关系.
主要方法:
- 对55名肥胖儿童和25名正常体重儿童/青少年的便微生物组分析,根据年龄和性别进行了匹配.
- 微生物种类和推断代谢途径与肥胖状态的相关性分析.
- 评估微生物群,胆固醇,LDL和CRP水平之间的相关性.
主要成果:
- 特定的细菌 (例如,Streptococcus,Prevotella) 和推断的途径 (氨酸,氨酸,氨酸,甲氨酸生物合成) 与肥胖有积极的相关性.
- 在肥胖的人群中观察到更多的聚胺和脂多糖生物合成途径,以及较低的布坦二醇生物合成.
- 肥胖样本中的Firmicutes/Bacteroidetes比率较低,但被认为作为肥胖生物标志物不可靠.
结论:
- 儿童肥胖与特定的肠道微生物组成和改变的代谢途径有关,包括与炎症相关的代谢途径.
- 某些与肥胖相关的微生物种群和途径可能会增加代谢疾病的风险.
- 菲尔米库特/巴克特罗伊德比率不是适合儿童肥胖症的生物标志物.
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