ArticleBMC microbiology2026
The intrinsic link between the double burden of dental caries and stunting in children: the gut microbiota plays a key role.
Article in BMC microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionCurrently, a significant number of children are experiencing the dual challenges of dental caries and malnutrition. This study aims to investigate the potential correlation between dental caries and malnutrition.
methodsRecord the lifestyle variables, oral health conditions, and growth parameters of the subjects. Dental plaque and fecal samples were collected for 16 S rDNA sequencing to analyze the characteristics of the oral and gut microbiota. Furthermore, untargeted metabolomics was employed to investigate changes in the serum metabolome of patients with severe dental caries.
resultsPoor lifestyle can alter the oral microbial composition, increasing the risk of developing dental caries. Changes in the oral microbiota of patients with dental caries affect the gut microbiota, resulting in an increased abundance of genera such as Dialister, Megasphaera, and Agathobacter. Sphingomyelin, phosphatidylcholine, lysophosphatidylcholine, lysophosphatidylethanolamine, and phosphatidylethanolamine exhibited a significant positive correlation with the height-for-age Z-score. In patients with severe dental caries, the serum concentrations of these phospholipids were notably reduced, which was closely related to changes in the gut microbiota.
conclusionDental caries disrupted the gut microbiota by altering the oral microbiota, leading to changes in the serum phospholipid profile of individuals with severe dental caries, ultimately raising the risk of stunting in children.
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