Objective: To analyze the changes on gut microbiota and metabolic products in patients with chronic heart failure. Methods: By searching the Pubmed, EMBASE, Cochrane Library, and CNKI, Wanfang, and CMB databases from the day of built up to December 2019, we screened related literature exploring the intestinal flora of chronic heart failure patients, and systematic review was performed to study changes in intestinal flora composition, function, and metabolites among chronic heart failure patients. Results: A total of 10 articles were included to study the gut microbiota of patients with chronic heart failure in this analysis. The systematic review showed significant changes in β-diversity in patients with heart failure. The abundance of faecalibacterium, blautia, bacteroides, prevotella and anaerostipes was decreased, while the abundance of streptococcus, escherichia/shigella, veillonella, and enterobacte was increased. The increased microbial gene function in patients with heart failure included tryptophan metabolism, lipid metabolism, LPS synthesis,and so on, especially, bacterial genes related to trimethylamine oxide production increased significantly, while genes related to key enzymes producing the beneficial metabolite butyrate decreased significantly, and harmful metabolite trimethylamine oxide levels increased in chronic heart failure patients. Conclusion: There are significant changes in the structure, function and metabolites of intestinal flora in patients with chronic heart failure.
目的： 评价慢性心力衰竭（心衰）患者肠道菌群构成、功能及代谢产物的改变。 方法： 通过检索中国生物医学文献数据库（CBM）、中国期刊全文数据库（CNKI）、万方数据库、美国国立医学图书馆数据库（PubMed）、医学文摘数据库（EMbase）、Cochrane循证医学数据库（Cochrane Library）检索出有关慢性心衰患者肠道菌群改变的研究，检索时段为从各自数据库建库起至2019年12月，系统评价慢性心衰患者肠道菌群构成、功能及代谢产物的改变。 结果： 共纳入10篇关于慢性心衰患者肠道菌群的研究。系统评价结果显示慢性心衰患者肠道菌群β-多样性改变明显，粪杆菌属、布劳特菌属、拟杆菌属、普雷沃菌属、厌氧棒状菌属丰度降低，链球菌属、大肠杆菌/志贺氏菌属、韦荣球菌属、肠杆菌属丰度升高。慢性心衰患者增加的微生物功能模块是色胺酸代谢、脂质代谢和脂多糖合成等，且与氧化三甲胺生成相关的细菌基因明显增加，与生成有益性代谢物丁酸盐相关的细菌基因减少，有害代谢产物氧化三甲胺水平升高。 结论： 慢性心衰患者肠道菌群的构成、功能及代谢产物发生了明显的变化。.