Journal
GENOMICS
Volume 113, Issue 4, Pages 2503-2512Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ygeno.2021.05.041
Keywords
Antibiotic resistance genes; Horizontal gene transfer; Obesity; Gut microbiota
Funding
- National Natural Science Foundation of China [81803214]
- Natural Science Foundation of Beijing [7212143]
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The study found that the abundance of ARGs significantly increased in high-fat diet induced obesity (DIO) mice, primarily due to the increase of ermB and tnpA-03 genes. The sharp increase of Lactobacillus may contribute to the proliferation of ARGs and the change of MGEs. Furthermore, MGEs are likely the most direct factor affecting ARGs in DIO mice.
Using mice as an animal model, we first demonstrated the significant proliferation of ARGs and the change of mobile genetic elements (MGEs) in high-fat diet induced obesity (DIO) mice, which the ermB and tnpA-03 genes mostly increased, illuminating that DIO could enrich the abundance of ARGs. Additionally, Lactobacillus sharply increased in the DIO mice and might contribute to the proliferation of ARGs and dramatical change of MGEs in the HFD groups. Finally, procrustes analysis showed the explanatory variables of the MGEs, the metabolites, and the microbial communities for the ARGs accounted for 94.3%, 53.4%, and 68.1%, respectively, and implying that MGEs might be the most direct factor affecting ARGs, and microbiota could be the main driver of the proliferation of ARGs in the DIO mice.
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