ArticleFrontiers in immunology2026
Polystyrene nanoplastics promotes inflammation and aging in young mice through the oral-gut microbiome axis.
Article in Frontiers in immunology, 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
With the escalating global pollution of nanoplastics, their impacts on organismal health have become a focal concern. The oral-gut microbiota axis plays a pivotal role in host health regulation, yet how nanoplastics influence this axis and drive inflammation and aging in young organisms remain undefined. This study aimed to investigate whether polystyrene nanoplastics (PS-NPs) promote inflammation and aging in young mice by disrupting the oral-gut microbiota axis. Therefore, we established a free-feeding model with 1000 μg/L PS-NPs using 8-week-old C57BL/6 mice. We quantified tissue inflammatory cytokines and cellular senescence markers to assess PS-NPs-induced inflammatory and aging effects, while 16S rRNA sequencing was employed to characterize oral and gut microbiota structural changes. We found that PS-NPs exposure significantly increased the expression levels of cellular senescence markers p21
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