Gut microbiota composition and changes in patients with sepsis: potential markers for predicting survival

被引:3
作者
Luan, Feiyu [1 ]
Zhou, Yang [1 ]
Ma, Xiaohui [1 ]
Li, Yue [2 ]
Peng, Yahui [1 ]
Jia, Xiaonan [1 ]
Li, Nana [1 ]
Wang, Xibo [1 ]
Luo, Yinghao [1 ]
Man, Mingyin [1 ]
Zhang, Qianqian [1 ]
Wang, Chunying [1 ]
Yu, Kaijiang [1 ]
Zhao, Mingyan [1 ]
Wang, Changsong [1 ]
机构
[1] Harbin Med Univ, Dept Crit Care Med, Affiliated Hosp 1, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Med Univ, Affiliated Hosp 2, Dept Crit Care Med, Harbin 150081, Heilongjiang, Peoples R China
基金
中国国家自然科学基金;
关键词
Sepsis; Gut microbiota; Mortality; Intensive care; Outcome; Prediction; FECAL MICROBIOTA; IMMUNOSUPPRESSION; INFLAMMATION; DYSBIOSIS; AXIS;
D O I
10.1186/s12866-024-03188-6
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Background Sepsis can cause immune dysregulation and multiple organ failure in patients and eventually lead to death. The gut microbiota has demonstrated its precise therapeutic potential in the treatment of various diseases. This study aimed to discuss the structural changes of the gut microbiota in patients with sepsis and to analyze the differences in the gut microbiota of patients with different prognoses. Methods We conducted a multicenter study in which rectal swab specimens were collected on the first and third days of sepsis diagnosis. A total of 70 specimens were collected, and gut microbiota information was obtained by 16S rRNA analysis. Results The relative abundance of Enterococcus decreased in rectal swab specimens during the first three days of diagnosis in patients with sepsis, while the relative abundance of inflammation-associated Bacillus species such as Escherichia coli, Enterobacteriaceae, and Bacteroidetes increased. By comparing the differences in the flora of the survival group and the death group, we found that the abundance of Veillonella and Ruminococcus in the death group showed an increasing trend (p < 0.05), while the abundance of Prevotella_6 and Prevotella_sp_S4_BM14 was increased in surviving patients (p < 0.05). Conclusions The Firmicutes/Bacteroidetes ratio, reflecting overall gut microbial composition, was significantly lower on day three of sepsis diagnosis. Changes in the abundance of specific gut microbiota may serve as prognostic markers in patients with sepsis.
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页数:11
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