Non-Ischemic Heart Failure With Reduced Ejection Fraction Is Associated With Altered Intestinal Microbiota

被引:56
|
作者
Katsimichas, Themistoklis [1 ]
Ohtani, Tomohito [1 ]
Motooka, Daisuke [3 ]
Tsukamoto, Yasumasa [1 ]
Kioka, Hidetaka [1 ]
Nakamoto, Kei [1 ]
Konishi, Shozo [1 ]
Chimura, Misato [1 ]
Sengoku, Kaoruko [1 ]
Miyawaki, Hiroshi [1 ]
Sakaguchi, Taiki [2 ]
Okumura, Ryu [2 ]
Theofilis, Konstantinos [4 ]
Iida, Tetsuya [3 ]
Takeda, Kiyoshi [2 ]
Nakamura, Shota [3 ]
Sakata, Yasushi [1 ]
机构
[1] Osaka Univ, Grad Sch Med, Dept Cardiovasc Med, 2-2 Yamadaoka, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Grad Sch Med, Dept Microbiol & Immunol, Suita, Osaka, Japan
[3] Osaka Univ, Res Inst Microbial Dis, Dept Infect Metagen, Suita, Osaka, Japan
[4] Natl Inst Informat & Commun Technol, Suita, Osaka, Japan
基金
日本学术振兴会;
关键词
16S rRNA; Dysbiosis; Gut flora; Heart failure; Intestinal microbiota; GUT MICROBIOTA; SEQUENCE-ANALYSIS; BINDING PROTEIN; SERUM-LEVELS; HEALTH; BACTERIA; IMPACT; ALPHA; FLORA;
D O I
10.1253/circj.CJ-17-1285
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Research suggests that heart failure with reduced ejection fraction (HFrEF) is a state of systemic inflammation that may be triggered by microbial products passing into the bloodstream through a compromised intestinal barrier. However, whether the intestinal microbiota exhibits dysbiosis in HFrEF patients is largely unknown. Methods and Results: Twenty eight non-ischemic HFrEF patients and 19 healthy controls were assessed by 16S rRNA analysis of bacterial DNA extracted from stool samples. After processing of sequencing data, bacteria were taxonomically classified, diversity indices were used to examine microbial ecology, and relative abundances of common core genera were compared between groups. Furthermore, we predicted gene carriage for bacterial metabolic pathways and inferred microbial interaction networks on multiple taxonomic levels. Bacterial communities of both groups were dominated by the Firmicutes and Bacteroidetes phyla. The most abundant genus in both groups was Bacteroides. Although a diversity did not differ between groups, ordination by beta diversity metrics revealed a separation of the groups across components of variation. Streptococcus and Veillonella were enriched in the common core microbiota of patients, while SMB53 was depleted. Gene families in amino acid, carbohydrate, vitamin, and xenobiotic metabolism showed significant differences between groups. Interaction networks revealed a higher degree of correlations between bacteria in patients. Conclusions: Non-ischemic HFrEF patients exhibited multidimensional differences in intestinal microbial communities compared with healthy subjects.
引用
收藏
页码:1640 / +
页数:21
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