Differently Surface-Labeled Polystyrene Nanoplastics at an Environmentally Relevant Concentration Induced Crohn's Ileitis-Like Features Via Triggering Intestinal Epithelial Cell Necroptosis

Differently surface-labeled polystyrene nanoplastics at an environmentally relevant concentration induced Crohn’s ileitis-like features via triggering intestinal epithelial cell necroptosis

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Researchers found that polystyrene nanoplastics at environmentally realistic levels triggered Crohn's disease-like inflammation in the small intestine of mice. Different surface coatings on the nanoplastics affected which immune pathways were activated, but all types caused gut damage. This study suggests that nanoplastic exposure through food and water could contribute to inflammatory bowel disease in humans.

Impact of Micro-nanoplastics on Gut and Immune Function

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This review examined how micro- and nanoplastics disrupt gut microbiota and immune function across aquatic and terrestrial vertebrates, with implications for human health. Because the gut microbiome governs immune regulation and metabolic health, microplastic-induced dysbiosis represents a plausible mechanism by which plastic ingestion could drive systemic inflammation and disease beyond the GI tract.

Impact of Microplastics on the Severity of Intestinal Inflammation in Mice

Evaluation of intestinal toxicity of polystyrene micro/nanoplastics using intestinal organoids

Polystyrene microplastics trigger intestinal inflammation through CXCL11-mediated T-cell recruitment

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Scientists found that microplastics, tiny plastic particles now found in water, food, and even our bodies, can trigger significant gut inflammation in fish by activating a specific immune signaling pathway that recruits inflammatory cells into intestinal tissue. While this study was done in zebrafish, not humans, it reveals a detailed biological mechanism for how these ubiquitous plastic particles might damage gut health, raising important questions about similar effects in people given how widely microplastics have infiltrated our environment and food supply.