Abstract | BACKGROUND: Although there are many hypotheses, the pathogenesis of Crohn's disease (CD) is not completely clear so far. Exclusive enteral nutrition (EEN) is a routine measure in the treatment of active CD. We aimed at investigating the impact of EEN on patients with active CD from microbial metabolomics. METHODS: 16S-rDNA sequencing technology and gas chromatography-mass spectrometer analysis were employed to investigate the modification of the intestinal flora and fecal short-chain fatty acid (SCFA) during the EEN. RESULTS: Seven patients with CD, who conducted EEN, were followed up successfully in the present study. The 8-week EEN resulted in a remission of the condition of subjects with active CD, as revealed by a significant decrease in erythrocyte sedimentation rate (ESR) (P = 0.018), C-reactive protein (CRP) (P = 0.028), and Crohn's disease activity index (CDAI) (P = 0.018). The nutrition of the subjects was improved after an 8-week treatment course with EEN, which was associated with an increase in body mess index (BMI) (P = 0.018) and serum albumin (ALB) (P = 0.018) levels. Furthermore, our investigations revealed a significantly increased abundance of Firmicutes paralleled by decreased levels of Proteobacteria. With respect to the genus, five species of bacteria including Ruminococcus (P = 0.01), Lachnospiraceae (P = 0.02), Anaerotruncus (P = 0.04), Flavonifractor (P = 0.04), and Novosphingobium (P = 0.05) showed significantly increased abundance. This was accompanied by relative changes in fecal short-chain fatty acids levels. Moreover, we successfully constructed a stable model by combining these five significantly different genera to predict the therapeutic effect of EEN on patients with CD (AUC = 0.9598). CONCLUSIONS: The findings indicated that EEN can alleviate the condition and the nutrition of patients with active CD by regulating the intestinal flora and influencing the expression level of fecal short-chain fatty acids.
|
Authors | Jingjing Jiang, Lu Chen, Yanfang Chen, Hong Chen |
Journal | BMC gastroenterology
(BMC Gastroenterol)
Vol. 22
Issue 1
Pg. 212
(Apr 30 2022)
ISSN: 1471-230X [Electronic] England |
PMID | 35501724
(Publication Type: Journal Article)
|
Copyright | © 2022. The Author(s). |
Chemical References |
|
Topics |
- Crohn Disease
(microbiology)
- Enteral Nutrition
(methods)
- Fatty Acids, Volatile
- Feces
- Gastrointestinal Microbiome
- Humans
|