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肠道微生物群作为不同营养风险患者慢性心力衰竭的预测生物标志物
Chen Yang1, Xiaopeng Li1, Miaomiao Hu2
1Department of Cardiovascular Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230000, Anhui Province, China.
肠道细菌如Enterobacter和Escherichia-Shigella与营养不良和恶化的心力衰竭有关. 针对这些微生物可能会改善慢性心力衰竭患者的营养状况.
科学领域:
- 微生物学 微生物学
- 心脏病学 心脏病学
- 营养科学 营养科学
背景情况:
- 慢性心力衰竭 (CHF) 与营养不良和肠道微生物群的改变有关.
- 营养风险评估对于管理CHF患者至关重要.
- 肠道失调和CHF的营养状况之间的相互作用需要进一步研究.
研究的目的:
- 调查慢性心力衰竭患者肠道微生物群组成和营养风险之间的关系.
- 为了确定与CHF中营养不良相关的特定微生物特征.
主要方法:
- 来自62名CHF患者和21名健康对照的便样本的16S rRNA基因测序.
- 使用NRS2002.2.将CHF患者分为营养风险组的分类.
- 使用LEfSe,随机森林回归,ROC曲线,BugBase,PICRUSt2和metagenomeSeq.进行分析.
主要成果:
- 营养风险较高的患者表现出高水平的肠杆菌和埃舍里希亚-西格拉菌.
- 在前白蛋白水平和埃舍里希亚-希格拉丰富度之间观察到负相关性.
- 肠杆菌和Escherichia-Shigella与肠道炎症增加和素代谢受损有关,影响了专蛋白和前专蛋白合成.
结论:
- 肠道功能失调,特别是肠道细菌和埃舍里希亚-西格拉菌的过度生长,有助于CHF患者的营养不良.
- 这些微生物变化加剧了肠道炎症,破坏了蛋白质合成,加剧了慢性心血管疾病的进展.
- 针对特定的肠道细菌可能提供一种治疗策略,以改善CHF的营养状况和结果.
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