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Effects of compound prebiotics as prophylactic and therapeutic supplementation in a mouse model of acute colitis

  • Applied Microbial and Cell Physiology
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Abstract

Compound prebiotics (CP) have been explored in modulation of intestinal microbiota and remission of inflammatory responses in the acute colitis (AC). Yet, research on the roles of simultaneous prophylactic and therapeutic CP intervention in relation to AC remains lacking. Here, CP were pre-fed to examine preventive effects. CP, CP combined with mesalazine (5-aminosalicylic acid) (CPM), and mesalazine were used to evaluate therapeutic effects on the dextran sulfate sodium (DSS)–induced AC. Results showed that prophylactic CP and therapeutic CPM alleviated AC, evidenced by variations of body weight, colon length, spleen index, disease activity index score, histological score, and intestinal mucosa. Ruminococcus and Bifidobacterium were detected in significant abundance in the prophylactic CP and therapeutic CPM groups, respectively. Phylogenetic ecological network analysis revealed that therapeutic CPM probably had the strongest coupling between microbes in changing intestinal microbiota to influence treatment. However, changes in short-chain fatty acids (SCFAs) seemed to have no persuasive results, probably due to reduced SCFA level in feces and variability in transit, absorption, and utilization. Furthermore, therapeutic CP exerted higher value in terms of observed species and Shannon diversity, as well as a more concentrated distribution by principal coordinates analysis. Together, the favorable roles of CP in colitis provide directions for prebiotics in designing effective prophylactic functional diets and treatment strategies.

Key points

• Prebiotics as prophylactic intervention effectively inhibited acute colitis.

• Prebiotics as prophylactic and therapeutic interventions had distinct effects on gut microbiota.

• Prebiotics combined with drug intervention had higher efficacy in treating acute colitis.

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Data availability

The fecal microbial 16S rRNA sequences were deposited to the sequence read archive. The Bioproject accession for the 16S sequencing data is PRJNA764077 (https://dataview.ncbi.nlm.nih.gov/object/PRJNA764077).

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Funding

This work was supported by the funding from CNS-ZD Tizhi and Health Fund (CNS-ZD2020-21).

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Authors

Contributions

J. C. and P. W. were involved in the conception and design of the study. J. C., P. W., S. Y. Z., Y. Z., and T. Y. Z. were involved in the collection and assembly of data. J. C. was involved in the data analysis and interpretation. G. H. R. was involved in the revision of figures and tables. All authors interpreted the data. J. C. wrote the first draft of manuscript. All authors approved the final manuscript.

Corresponding author

Correspondence to Jing Cong.

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Ethics approval

All the procedures used in this study followed national institutes of health guide for the care and use of laboratory animals and were approved by the Institutional Animal Care and Use Committee (IACUC) of Qingdao University.

Competing interests

The authors declare no competing interests.

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Cong, J., Wang, P., Gai, H. et al. Effects of compound prebiotics as prophylactic and therapeutic supplementation in a mouse model of acute colitis. Appl Microbiol Biotechnol 107, 2597–2609 (2023). https://doi.org/10.1007/s00253-023-12453-z

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  • DOI: https://doi.org/10.1007/s00253-023-12453-z

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