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Periodontitis salivary microbiota exacerbates nonalcoholic fatty liver disease in high-fat diet-induced obese mice

Periodontitis may aggravate the development of nonalcoholic fatty liver disease (NAFLD); however, the precise mechanism is unknown. In this study, salivary microbiota collected from patients with periodontitis was transferred intragastrically to obese mice induced by high-fat diet. Microbiomics and...

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Detalles Bibliográficos
Autores principales: Wang, Min, Li, Lili, Qian, Jun, Wang, Nannan, Bao, Jun, Lu, Jiangyue, Chen, Faming, Li, Yanfen, Zhang, Yangheng, Yan, Fuhua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10031158/
https://www.ncbi.nlm.nih.gov/pubmed/36968080
http://dx.doi.org/10.1016/j.isci.2023.106346
Descripción
Sumario:Periodontitis may aggravate the development of nonalcoholic fatty liver disease (NAFLD); however, the precise mechanism is unknown. In this study, salivary microbiota collected from patients with periodontitis was transferred intragastrically to obese mice induced by high-fat diet. Microbiomics and metabolomics analysis were performed to assess the influence of periodontitis salivary microbiota on gut microbiome and liver metabolism. Periodontitis salivary microbiota altered gut microbiota composition and exacerbated intestinal barrier dysfunction in obese mice. Subsequently, the bacterial lipopolysaccharide transported to liver may activate the toll-like receptor 4 signaling and cause the release of pro-inflammatory factors. Moreover, the tryptophan-kynurenine-AhR signal axis was upregulated in liver, which may be related to aggravated hepatic steatosis and glucolipid metabolism dysregulation during NAFLD development. This study indicated that in the context of obesity, periodontitis salivary microbiota may aggravate the pathological progression of NAFLD, in which the tryptophan-AhR pathway may play a key role.