0
Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Gut & Microbiome Sign in to save

Inflammatory response in the mid colon of ICR mice treated with polystyrene microplastics for two weeks

Laboratory Animal Research 2021 42 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Yun Ju Choi, Ji Eun Kim, Su Jin Lee, Jeong Eun Gong, You Jeong Jin, Sungbaek Seo, Jae Ho Lee, Dae Youn Hwang

Summary

Researchers found that two weeks of oral polystyrene microplastic exposure in ICR mice induced an inflammatory response specifically in the mid colon, suggesting microplastics may contribute to colonic inflammation.

Polymers
Models

Therefore, the present study suggests that PS-MPs can be a novel cause of an inflammatory response in the mid colon of ICR mice.

Sign in to start a discussion.

More Papers Like This

Article Tier 2

Influence of Microplastics on Morphological Manifestations of Experimental Acute Colitis

Researchers fed polystyrene microplastics to mice for six weeks and found that healthy mice developed changes in their colon lining, including altered mucus composition and immune cell populations. When mice with experimentally induced colitis also consumed microplastics, their intestinal inflammation was significantly more severe. The study suggests that microplastic exposure may worsen inflammatory bowel conditions.

Article Tier 2

Microplastic consumption induces inflammatory signatures in the colon and prolongs a viral arthritis

Mice that consumed low doses of polystyrene microplastics showed signs of colon inflammation and experienced prolonged viral arthritis symptoms. The results suggest that microplastic ingestion may worsen inflammatory conditions, though more research is needed to confirm human relevance.

Article Tier 2

Polystyrene micro- and nanoplastics in a colitis mouse model – effects on biodistribution, macrophage polarization, and gut microbiome

Researchers exposed colitis mouse models to polystyrene micro- and nanoplastics to test whether MNP exposure worsens inflammatory bowel disease, finding that MNPs altered biodistribution and exacerbated inflammatory responses in animals with pre-existing gut inflammation.

Review Tier 2

Microplastic effects on mouse colon in normal and colitis conditions: A literature review

This literature review examined studies on how microplastic exposure affects the mouse colon under both normal and inflammatory conditions. Evidence indicates that microplastics may contribute to intestinal inflammation and could worsen existing colitis. The review highlights the need for further research to better understand how microplastic ingestion may influence gut health in humans.

Article Tier 2

Polystyrene microplastics trigger colonic inflammation in rats via the TLR4/NF-κB/COX-2 pathway and modulation of intestinal microbiota

Rats exposed to polystyrene microplastics for 90 days developed significant colon inflammation, including damaged gut lining, increased inflammatory markers, and disrupted gut bacteria. The study identified a specific inflammatory pathway (TLR4/NF-kB/COX-2) through which microplastics trigger intestinal inflammation, providing important clues about how plastic particles in food and water could contribute to gut diseases in humans.

Share this paper