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在患有高脂血症的老年患者中,肠道微生物群的结构和功能改变
Meng Xia1, Yafang Xu2, Huajun Li2
1Department of Clinical Laboratory, First Affiliated Hospital, Dalian Medical University, Dalian, China.
Frontiers in cellular and infection microbiology
|May 30, 2024
概括
高龄的高脂血症患者表现出肠道微生物群的组成和功能发生变化,特定的细菌与脂质水平有关. 这些发现强调了肠道微生物群.
科学领域:
- 微生物学 微生物学
- 胃肠病学 胃肠病学
- 老年学是一门学科.
背景情况:
- 超脂血是老年人中普遍存在的疾病.
- 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.
- 肠道微生物群组成的变化与各种代谢性疾病有关.
研究的目的:
- 研究与健康对照组相比,患有高脂血症的老年患者肠道微生物群的结构,组成和功能差异.
- 探索高脂血症患者和健康个体肠道微生物群的潜在性相关变异.
- 确定与高脂血症及其临床标志物相关的特定微生物种群和代谢途径.
主要方法:
- 来自高脂血症 (M组) 和健康 (N组) 的老年人便样本的16S rRNA基因测序.
- 在患者和对照组中基于性别 (男性/女性) 的子组分析.
- 使用PICRUSt 2进行功能预测和微生物丰富度和血清脂质水平之间的相关性分析.
主要成果:
- 在超脂血症和对照组之间观察到肠道微生物群结构和组成的显著差异.
- 特定的细菌系显示出相对丰度的变化,在高脂血症组中减少了Bacteroides,Parabacteroides,Blautia,Peptococcus和Bifidobacterium,并且增加了Lactobacillus,Helicobacter和Desulfovibrio.
- 发现了与性别相关的微生物结构差异,与神经系统相关的微生物功能也出现了变化. 阿加托巴克特和Faecalibacterium与甘油三和LDL正相关,而Bifidobacterium与脂蛋白a负相关.
结论:
- 肠道微生物群的组成和功能在患有高脂血症的老年人中发生显著变化.
- 特定的肠道细菌与脂质概况相关,这表明在超脂血症的发病过程中发挥了作用.
- 准肠道微生物群可能为老年人管理高脂血症提供一种新的治疗策略.
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