Abstract
The primary aim of this study was to investigate the alterations in the microbial community of KK-Ay mice following antibiotic treatment. A comparative analysis of the gut microbiota was conducted between KK-Ay mice treated with antibiotics and those without treatment. The microbial community dynamics in antibiotic-treated KK-Ay mice were meticulously assessed over an eight-week period using 16S rDNA sequencing analysis. Simultaneously, dynamic renal function measurements were performed. The results demonstrated a marked decrease in bacterial DNA abundance following antibiotic intervention, coupled with a substantial reduction in bacterial diversity and a profound alteration in microbial composition. These observed microbiota changes persisted in the KK-Ay mice throughout the eight-week post-antibiotic treatment period. Particularly noteworthy was the reemergence of bacterial populations after two weeks or more, resulting in a microbiota composition resembling that of untreated KK-Ay mice. This transition was characterized by a significant increase in the abundance of clostridia at the class level, Lachnospirales and Oscillospirales at the order level, and Lachnospiraceae, Oscillospiraceae, and Ruminococcaceae at the family level. Concurrently, there was a notable decrease in Clostridia_UCG-014. The observed alterations in the gut microbiota of antibiotic-treated KK-Ay mice suggest a dynamic response to antibiotic intervention and subsequent restoration towards the original untreated state.
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Data availability
Data available on request from the first authors. All sequencing data were deposited in the the NCBI SRA under accession number PRJNA1014710.
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Acknowledgements
The authors acknowledged Guangdong Provincial People's Hospital and Professor Zhongdao Wu’s lab in Sun Yat-sen University for the academic supports.
Funding
This study was funded by the National Natural Science Foundation of China (No. 82202560), the Guangdong Basic and Applied Basic Research Foundation (No.2022A1515110655), the Traditional Chinese Medicine Bureau of Guangdong Province (Nos. 20231003 and 20223001), the Natural Science Foundation of Guangdong Province (Nos. 2023A1515011458 and 2021A1515220050), the Science and Technology Projects in Guangzhou (No. 2024A04J4314), the National Parasitic Resource Center of China (No. NPRC-2019-194-30), and the Science and Technology Program of Guangzhou (No. SL2022A04J00042).
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JH, FT, and WL were responsible for drafting the original manuscript. JH, YL, and MY analyzed the data and created the figures. DL and CM reviewed and edited the manuscript. All authors contributed to subsequent revisions and approved the final version for submission.
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The protocol was approved by the Institutional Animal Care and Use Committee of Guangdong Provincial People's Hospital (Approval Number: KY2023-018-01).
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Hong, J., Fu, T., Liu, W. et al. Gut microbiota dynamics in KK-Ay mice: restoration following antibiotic treatment. Folia Microbiol (2024). https://doi.org/10.1007/s12223-024-01157-0
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DOI: https://doi.org/10.1007/s12223-024-01157-0