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粘膜中心细菌作为改善高脂肪饮食相关肠道屏障损伤的潜在目标

Li Shao^1,2,3, Binbin Zhang^1,3, Yu Song⁴

¹School of Clinical Medicine, Hangzhou Normal University, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 311121, Zhejiang, China.

The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale

|December 5, 2024

概括

高脂肪饮食会破坏肠道屏障,增加疾病的风险. 针对特定的肠道细菌,如 Bacteroides ovatus,可能提供一种新的治疗策略,以恢复肠道屏障功能.

科学领域:

微生物学微生物学
胃肠病学胃肠病学
代谢学代谢学代谢学

背景情况:

肠道屏障功能障碍与肥胖和糖尿病有关,治疗选择有限.
肠道微生物组和肠道屏障表现出密切的相互作用,这表明微生物是饮食引起的损伤的目标.

研究的目的:

研究粘膜细菌作为高脂肪饮食 (HFD) 诱导的肠壁损伤的潜在目标.
为了表征肠道微生物组合和网络结构对HFD的反应的变化.

主要方法:

全基因组基因组学分析粘膜微生物组合.
使用血清脂聚糖 (LPS),FITC-dextran强度和ZO-1蛋白表达来评估肠道屏障完整性.
微生物变化与生理/生化标志物之间的相关性分析.

主要成果:

HFD诱导肥胖,改变脂质谱,并证实肠道屏障损伤 (升高的LPS,FITC-dextran,减少ZO-1).
在HFD养小鼠中,观察到粘膜微生物组合的显著变化,包括像Bacteroides ovatus这样的枢纽细菌的减少.
减少 Bacteroides ovatus 丰富度与增加的肠道透性和改变的代谢途径相关,例如"线粒体生物发生".

结论:

粘膜中心细菌,特别是 Bacteroides ovatus,代表了改善与HFD相关的肠壁功能障碍的有希望的治疗标.
微生物组的变化提供了对HFD诱导的代谢和肠道疾病的病原体的见解.

关键词:

有高脂肪的饮食.细菌中心细菌中心肠道屏障损伤的损伤粘膜中的微生物组

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